Field Notebook: 1984b

Hickey, Leo

1984

Yale Peabody Museum of Natural History

Original Source

Source Material:
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org

paleobotany stratigraphy palynology

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168 Pages

UNITED STATES DEPARTMENT OF THE INTERIOR DI-6 APPROVED DECEMBER 1941

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Book 2 1984 Arctic Etlesmore IS PX (10/1) 3 #10 Loc 8432 Section 8432 Through Member I of E.S Fm on Air Photo. This Section traverses an interval about 1/8 mile S. of the Channel axis In a sequence of Sands & Coals w/ Clay Festone Cones Starts on slump apron about 15' above unnamed Creek. Section dips at 7° to south, prob. tectonic [app. 350 m a.b. Mbr I] UNIT Thickness Description Cm Eureka Sound Fm. Mbr I 1 300 ss, dirty, med gray weathering mg, s.a.d with lignitized wood frags.; apparently massive 2 100 sm. channel y., lt gray weathering, mg.s.a. ss [illegible] w/ clay

9/15/87 Calculation of elevation of Base of Sec. 8432 above base of Mbr I Dip 7°S in small dome Channel at white bluff on S. limb of dome Distance Contact ES/Kb 3420m Azimuth 157 Dip 7°S Strike 90° Diff Azt. Dip. Az, meas. dip 23° App. dip = 50 Dist. Base of Sec 8432 above base of Mbr I sin 50° x 3420 m = 298 ~300m Mbr I KK (Kanguit) white bluff channel Sec 8432 Sec 94133

med gr. brownish grey, quartzose w. tabular & ripple drift X-bedding alt. bands dark gray- brown and lt. grey, upper portion w. clasts up to 5 cm composed of med grain s.a ss w. white clay cement. Base contact down - cutting into unit 1, Thickness = 0. 1 meter N. and 4 m. south of l. of s, equivalent to but ONLY rare parts THIS is UNIT 8 of Sec 9433 interbedded lignite streaked w. dark grey carbonateous shale. -> 330 above base pollen 8432d.<- Lignite internals disrupted by perma- frost. 2 meter above base mudstone inter- beds are added. Impure lignite , 205 cm thick lignite,

5 165 lt brownish gray weathering, massive siltstone, ledge forming, fines upward, transitional to unit 6 6 130 dark gray plastic mudstone, lt, brownish gray weathering. 7 140. Lignite, impure w. clay 8 495 Interbeds of lt, gray siltstone w. carbonaceous blebs and thin spalls of lignite. Some clay Fe concs., [illegible] wood. Rare ledges of limonite cemented silt. Weathers lt, gray w. trace of fluting. 100' north large channel of lt, gray fluted rock occurs at this level. 9 25 25cm b. gray clay massive. 10 340 Lignite, forming prominent

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ledges. 11 290 limonitized wood in base -> dark gray carb, shale w. limonitized stony horizontally wood making forest floor or lignite. - > 8432e pollen <- 20cm. above base of unit <- permafrost stratigr. of unit, Fissile shale -> 8432f pollen sample from br. gray chippy sandstone above 30cm. sample from 40cm <- Unit weathers lt. gray fluted. 12 245 Impure lignite w. limonitized wood, At 245 next unit. 13 145 Dark gray fissile carb, shale. 14 30 Med brownish gray v.fgsa dirty ss, weathers lt. gray, fluted,

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15 2/0 Brown massive mottled ss, vfg sa, dirty, mottled w. massive carb. blebs. Above 165 becomes sooty & fines upward to carb, clay 16 65 Lignite 17. 360. Dark brownish gray massive mudstone weathers red, brownish gray. At 235 clay Fe conc. w. plant stems, Offset to spur 100m. south away from channel. 16 235 Lignite 17 35 Carbonaceous & brown shale 18 20 Lignite 19 25 Dark gray carb shiggy shale, weathering tan 20 505 Gradus upward to greenish mudstone. Unit contains

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Clay Fe cones, this contain "Metasequoia" foliage & cones. 8432a. Cones, up to 30cm thick. Core layer 10cm thick, top occurs at 475. 21 130 Nfg dirty ss weathering lt. gray. Becomes J, increasingly carbonaceous in least 50cm. 22 260 Lignite 23 15 Gray shale 24 65 Indurated ss ledge, nfg, ripple drift bedded & ripple marked w. Credneria ?, Platenus flora 8432,6. 25 165 Fossil dark gray shale 26 1175 Olive drab mudstone weathering greenish tan w/ clay Fe cones. At 330 clay Fe cones,

165 6 990 165 20 1175

with fossil glentes 30cm thick, 8432 c. Borrows clay Fe concr, in last 200cm. 8432 a - 2 liwynites above Flintstone if sec. 8433.

Base of Sec 8433 CALCULATED AT 201 m + base E.S fm. See back of p. for UNIT#4 Sec, 8433

7/13/84 SECTION 33 Section through White Bluff Channel at Camp. unit thickness cm description 1 200 Base of section starts at river in a 200cm thick indurated X-bedded (tabular) yellow gray ss occurring below White Bluff ss channel. 2 495 Laminated siltstone - mudstone unit weathering red brown to rusty gray (represents distal filling of flood basin) 84P33a, 80cm above ss channel, pollen samp 3 4630 downcut channel base of White Bluff channel cuts from 495 to 165 toward south. Beds dip here about 10° S. Coarse subangular ss; lithic arenite. Tabular bedded yellowish tan. Rock frags to 5cm.

165 3960 145 4185 24 440 330 3960 165 18 3300 - 330 2970 165 8 1320 2310 4630 1650 330 (98) 111 1650 660 2310

Black chut and white quarte pebbles up to 710 cm imp ortant, 1980 weather's fluted, above. Top of yellow sand, beginning of white X. bedded sand, white clay cement, clasts to 20cm in small channels. Base of white cuts into yellow to south, Chanel bottoms freq, cemented by limonite, lenticular bedding. Fluted weathering, course to mg sa. Current direction in 2 Tabular sets is S by SE, in a third is S, in Fourth is SW, at 2970 cm, Predominantly course at this g loa. At 3960 have another set indicating current direction S,

8433 #8 0 201 8432 #2 base 8432 104 m base 8433 305 base E.S.fm 4950 - 165 5 30 460 + 165 x 2 330

5 990 At 4105 ss, weathered red gray carbonaceous matter on some bedding planes Thickness of fogstone in other sections (by observation) at least 100 cm. 6 2.06 Lignite U.T. 7 0.50 SS unwind yellow gray fg, SA 8 80 yellow E&W mg SS fogstone indurated forming prominent yellow gray wh ledge marrying to ot white dBluff channel deposition and extending out into Sec. 8432. #2 & 8432 = LATERALLY TO S This unit is equiv to unit # 2 of Sec 8432 but indurated SS only in rare lenses by that time.

7/4/84 60 F + mosquitoes. Brough Section one 9 340 Lignite 9 1/2 400 Light grey ss x bedded 10 500 yellow wh mummy ss w clay Fe smt Ledges Dip now 15% S Many Clay Fe Stone concs Forming keyy. 11 200+ yellow grey ss interbeds w lignitic sandy bed. 12 50 cm Lignite 13 Clay Fe smt concs 268m at base of a yellow Grey wh. ss Fossils 8432g Top of sand.

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7/14/84 PICKED up by TWIN OTTER ASG (pilot jim meritt) FLEW TO BAY FLERD BY WAY OF SOUTH BAY & MOORE VALLEY FOUND Mbr I TO EXTEND N ALONG W FRONT OF SAWTOOTH MIS. ALSO AT N END OF WOLF VALLEY BENEATH MBR II SEDS. Mbr I SEEMS TO BE A COMPLETELY RECOGNIZABLE UNIT THROUGHOUT A LARGE AREA OF CENTRAL WEST BRITISH COLUMBIA.

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7/5/84 8434 Bay Fiord nose of syncline at S of Irene Bay mbr. IV E.S. Fm. Pinned on AFA-16606-85 METAseq. Cercidi PLATAN nob. MAGNOLIA ? 8435 Bay Fiord nose of syncline Cercid, phyllum fruits in CLAY Fe stone Some cercid ivs. AND META sprays w Coryphaden bone scrap.

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7/15/84 8436 Top of mbr III about 50' below upper contact w/ Mbr 4 Bay Fiord S. of Event Box in syncline 8436b Metasequoia cones Snails x clams Cercid. fruit. 10m below mbr IV/III contact 8436a - 20' higher in am [illegible] Fe cemented SS [illegible] above a grey sand Taxodium p., mollus 8436c 100' below 8436a Small Henry Moore sculpture Wood or shell that has been worm bored from flowers Clay Fe stone covered Yellow grey slipe

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7/5/84 8437 Mbr II north w side of syncline s. of Irene Bay Equisetum large Betula. 8439b \ 20 feet lower than 8437 lymitized wood w growth rings @ metasequoia PLAT foliage at this level METASEQ. PLATANUS reynoldsii 8437C CAICAREWITE w/ IVS UNIT #7 of s. Populus Cercidiphyllum Metaseq Betula Platanus & new PLATANOID Bed markings "pimples" & worms.

Fig 14 IIII III II

Section 8437 Section STARTS NEAR TOE OF SPUR about 1/4 mi from JCT of ITS TRIBUTARY STREAMS w/ THE MASTER DRAINAGE. mbr III INTVVL on h MATS & SITS, SOME COMTS IN SOFT INTVLS SEPARATED BY SS. UNIT Thick Des. 1 H3 10 - 0.3 m 16.5 m Dip 687o MATS, SITS, Thin Lys. PIP 58o's 2. 0.6 m SS xbedded 3 20 + 0.5 m 34.2 m AS UNIT #1 4. 0.5 m Yell tan CALC ARCHITE 5 25 42.1 m AS UNIT #1 W SS lenses up to 0.4 m)

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8437 8/5/84 Thickn highlite 6 1 H7 1.7m 7 4+ 0.13 m As in unit 1 7m ? 1 + 0.1 X bedded calcarenite 1.8m w roots vert. 9 13 - 0.3m Dip now 50% 21.6m unit as at #1 SS indurated SS lenses 10 1.4m IND SS (calcaren w vert roots) Dip now 42? 11 6 UNIT as at #1 10.1 predom sands yell tan wh. 12. 9 Ht Shaley unit 15.2m foms cliff of brow wh. zundra mud 13 4- 0.3m As #1 6.4m 14 0.8m SS ledge (Calc.) 15 15 + 0.8m As at #12 26.1m

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16 2, H7 0.3 m 3, 7 m AS in #1 UNIT a TAN wh rhythmically bedded seq. of marls, mudst 17 2,5 m Inv. calcarenite w /vs of flora 8#37 C f worms some ball and pillow VERTICAL roots 8437c -> 18 5, @ 0.4 m AS in #16 8,8 m but w TAN unwind ss interh + CLAY FC silt 19 0,8 m Lign IT 20 13 H1- 0,2m IN turbedded Lignite 22.1 m & TAN SS INTERVAL SHs + SISTS Petrified wood 4T BASE (Sampled) AT 6 HI 10c 8437 -> Equisetum lacking slits

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21 0.3m Fossil pl. Imps. 1st SS ledge, AS in #20 22 2H+ 0.8m 4.2m 1st SS ledge, CALC x ar 1Tc Disrupted bedding no fossil pl. 21 1.2m Above this pt, Appears 7 + 1.4m 13 m 14 grey ss than Chensei W INT CALK ledges Some marl. No lymtc. TRANS to Mbr TZ Dig now is Zt CLAY FC stones w leaf imprs rarely 23 0.4 m Limonite wh. SS ledge, 24 2 HI AS 14H22 3.4m AT 1 HJ Level of META coner 25 3 AT SS w @ HI lymtc od 5m erbights of x beds in S,

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26 26, + 0.8 M As in 24 14.6 m CLAY FE STONE AT base -> 20 H2 thin CLAY FE STM. Level throughout of 843 & IT YELL GREY Conophodon w/v fg ss loc. 27. LIGNITIC Slope forming mbr IV BASAL CONFLU

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Sect. 8438 Base of E.S. Fm. on Fossil Forest River Base is a CLASSIC parallel Bedded (Zhnly) pro delta sequence. Px 30-35' E W Section STARTS in Karguk Fm abt 2/3 of way to top of Kb. IN a primert ashy grey SILT unit that forms a low ridge. unit Thickness Description Karguk Fm., ashy grey siltstone forming bal an 50' thick section 1 431

165 43 495 165 2145 80 2226

starts 2/3 way to top of fm. 2 2245 Dk. gray laminated shale, poison sulfur smell, weatheres dk. grey w. whitish efflorescence some greenish glauconitic (?) inturbles in first 10m. (dip is 50% W). Bands of rusty greenish yellow weathering material at 2225 cm. glauconite(?), etc. Unit becomes silty, mottled in places 3 305 4 135 Black shale 5 430 Mudstone, med. grey weathering dk brownish grey color some mottling appears irregularly parallel laminated, lamination interrupted with mottling. Beds of siltstone appearing in upper portion. 4 285. Siltstone lens thickening to S. from 0.5 meter to 3m.

165 8 1320 120 1440 165 5 825

163/8 7 245 Mudstone, siltint - beds, dk gray to black, sulfur smell, Top of Kongo k 1 1440 Member 1 of ESF. Interclluted shales s. Histores, ironstones w. minor sands, sands intergy to tlg, generally fine laminated with burrowing into organic rich layers. Sulfur smell, several discrete layers of Fe nodules. Beds ca. 5-20 cm thick, Thickness of ss beds gently increases upward. (Intergraled as pro- dultate sequence + initiation of ESF) 2 825 Sand, Lgw, vfg ss. Above 200cm have clay Fe cemented sand ledges, deeply furrowed. 3 2680 Vfg ss., lt. yellow gray to yellow weathering. Abundant Fe cemented ledges with grooving. Burrows w. alteration

165 3 495 -48 50 165 16 990 165 40 +40 2680 330 165 6 pollen -> 84386 <-

rims in greenish yellow sand --> 8438a sand for glauconite at 95cm) (dip 33° W). Above 495cm sand lt. gray to brownish gray w/ (wondering?) w/ (interbed?) cemented lodes but no unusual oxidation colors 4 330 lt. gray ss vfg lens, w/ carbonaceous & clay shale w/ brownish gray mudstone laminae, irregular but roughly parallel (PX 36, roll 3), sequence capped by 2cm lignite. (possibly represents back beach /? swamp/lagoon interface). 5 20 Lignite. 6 450 ss. as unit 4. 7 30 Lignite. 8 310 ss. as unit 4 9 470 gray br. shale w/ thin

498 25 470 165 1815 ""

1t. grey sand lens at 70cm, thin sand stringers in shale of well rounded fg sands (possibly representy wash over sands). -> Pollen at 340, 84386 <- 10 380 Sand, yellow, orange purplish weather v fg, clear w. white clay clasts in basal portion, some ferrug. impregnated ledges 11 1.815 Purple, fissile mudstone. Contacts of units 4- are lenticular. Fining upward, to a shale above 660cm. 12 30 Br. grey mudstone. 13 235 ss, w. mudstone laminae roughly parallel similar to unit 4. 14 80 Fissile dk grey coars, shale

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15 120 Lignite 16 135 Ss, as unit 4; Basal contact down cutty. 17 330 Coal v ss. interbedded 13 30 Dk. gray carb. shale, fissile, 14 195 Lignite 15 205 "Ss., vfg med. gray weathering friable w. shale laminae; dk. gray, increasing upward 16 175 Dk. brownish gray shale 17 60 Wh. friable vfg clean, apparently leached, ss, indurated to plates. 18 10 Purple gray siltstone, carb. 19 100 Lignite 20 70 Purple gray carb, ss Tox 40cm weathers to lt; yellowish gray plates

165 5 825 - 40 -40 785 330 35 295

21 165 Vfg carb, clut grey v ferruginous weathering ss, 22 785 Fissile dark gr shale (90), Interbedded with Platy weathering lg. ss, (30) (dip 25°) 23 295 Partially covered interval appears silky with Fe cemented ledges. Some thin lignites 24 100 Lignite w. petrifield wood Stumps regularly annual banded. Bony intervals in coals reg. soils w. roots horizontal, 25 165 Interval as unit 23 forming dip slope of cusets into mini stream valley, End of Section

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7/6/84 20C 8439 MUST PIN tonight PHOTO 16728-97 In lower Mbr IV CLAY Fe STUWY Cercid META GINKGO pteroCarya 1 seed glabra PLAT. PAYNOLDSIi PLAT nobilis Equisetum BETULA STEVENSONII A flora of Paleocene aspect East of MOUNT BELL Mbr I atop Kang yuk w SAME chemically altered SS at base as in Sec 8438

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7/7/84 Cool x Clear Temp 10°C In Syncline on N. Shore of Fossil Bay S of Camp Lignites appear to be a Combination of AUTOCHTHONOUS & Drifted Components w/ 'drift wood' particularly abundant toward the top of the coals Nowhere in my Arctic observations HAVE I seen burned wood either in the cOal or as CLASTS IN sediments 8440 In Syncline N. Slope of Fossil Bay Plate A 16606-86 Axis w bracts.

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Brian Bickelto Geological Survey of Canada 3303 - 33 St. New Calgary, T2E 0L8 Coal resource potential of Arktic. David MacIntyre at G.S.C in Calgary. - Brian has [illegible] over 200 samples from E.S. in Stard Field finds show in E.S. section from mid Maurs to mid Pelmore. Equates the 300 m shale only in the mid Pelmore at S.F. W/ probably the Transgressive mr I D here at Bay Fertil Sines that Princess Margaret Arch had [illegible] was a portion folded during early T.

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7/7/84 Middle Eumlian Orogeny pattern that the sediment came from the Avalon & Franklinian aplexts to its north. Deepani activity in E. Axel Hurley also a factor in shedding sediment. Denies its claim by Maall that the Tondrup basin was broken up into a number of sub-basins, sediment patterns for uniform or its majority of the area. Bangali space is a transgressive unit (in sense) & valid in study it occupied a strong 40 line & major marine maximum over land. - Marco in this regard.

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8441 7/7/84 on photo 16606-YC Hill of Scoria next west from Camp Hill. Monocot Hamamelid lf. Glyptostrobus Pterospermites? Alnus? Chaetoptelea Acer sp. Betula sp. Equisetum sp Metasequoia Cercidiphyllum sp PLATANUS nobilis -Vineea sp -Platanus raynoldsii (Juglans?)

Fault Hyatus This is classified in a section 8446 on C. List of Mm valley where E.S. Mb I rests on angular unconformity on Dev. Ordov. Fm. Mb II Mb I Dob E.S. is still preserved from here & in normal dep instead in cont

7/18/84 Helicoptering $50.00 Temp 45°F Light wind Helicopter Traverse 8442, S.E. Branch of Moore River SW of MT. Moore on high Hill W. of River 800' above m. Mbr II Thinly bedded Bl Shales w thin 10-20 cm Brown SS beds x some Clay Fe Stone Either this Valley is a [illegible] or a fold not thrust Section at least 1200' thick here Some channel ss w pos'd x beds of a meandering channel

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8442 7/11/84 From CLAY Fe ST. A Sample of metasequoia x of Miller 8442 Petrified wood in * HINK FOLD [illegible] #12 8443 Moore Valley Yellow white SS channels followed by lignites + SS channels l+ yellow Flaggy ss ledge- mbr I SS coarse 1 This area i/ This is an angular unconform- able contact w/ the Denman Blue Ford Fm. although this was not evident until loc 8446 on eastern margin of Moore Valley was seen. 8444 - About 1 mile N. of 8443 or e. side of outcrop. Inclusive,

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7/8/84 8445T South May Area First large creek south of Birch. Photo A16606-69 Mar III LmX SS W root & key/ markings marly/shs. Very uniformly tabular bedded. at least 1500 ft thick. pip up clasts in ls.

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7/8/84 Clear, warm, no wind mucho mosquitos 8446 South of Canyon Ford 79°32.5'N; 80°14.5'W E side of Moore Valley F.S. Mbr I on (Oske Bay Angular unconform abt 20° uplift No Christopher " Ipsachsen " Charlzyka " Mangvik (Central) Ellesmere an island in Mangvik sea. Mbr 2 bright colored Sand[s] in channels carb shales & lignites 100' Abot c Zyr IT10 Mbr II 8446 a 70' above basal contact w Dob Bony lignite above 60' channel of white ss Channel w/ pet wood w Sulphide

This indicates that Assam, Hard & Mangole are not present as not approached into Central Ellerman Highland. Contact along the E. side of More Valley is an unconformity not structure.

7/18/94 8447 Mbr I E side of Vol valley Wg Wolf Valley White ortho Jart Zitic SS? Tabular x Trough x bedded beds of grit & small pebbles above BLACK Kanguk Kanguk Thinner than to S. only about 40' Coals above, T. + Shales Lat. 79°47'N ; 82°26'N Contains some grits w/ litho fragment. Photo A16676-79

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7/8/84 8448 Wolf Valley marked on map. Pollen sample 40' below Top of Bluff + 10' below Beaufort Cap. SS. Yellowish Brown + ripple marked, in places. Shs. Dark Brownish Grey & Slatey Commuted /21. Frags. Beafor + wood collected from here. Photo 16 706-81

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7/8/84 6449 Veste Fiord 79°7.5'N; 83°20'W limestone ledges W burnings in Mary section worm traces on bedding plane in ls. mbc III. Many reports she and Mac found crinoid columns & molts in low area in 1973. miami chant 6450 western side of Veste Fiord syncline. Barron is a mo/is lat 79°8'N; long 83°31'W both on photo A 16676-177

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7/19/84 Camps Day at Bay Field Bob Schuck arrived at about 4:30 pm on AS6 w Doug McIver Pilot. 7/10/84 Rain Day & attempted to move to Lake Hazen but weather impossible that. 7/11/84 Hackett still socked in at Hazen w snow starting in the early afternoon. So we decided to go to Haughton Astrdome. Picked up by Doug McIver in AS6 w/a few stops at Bear Pond met Stewart Mc-Kingie arrived Municipal at Wild Mrs Ottawa (Penny Sull Warren - former wildlife photographer) & met Darrell Atk. Arrived at Haughton Astrdome at about 7:30

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7/12/84 In Houghton Astrobem Lake Ber. 8451 84-01 DiceraThere (Rhino) Skeletow w Teeth Higher of 2 10z. 8451 84-02 TRAGULID (Artiodactyl) Upper dental Skelotol parts must Toast crossers 8452 - Birch leaf In Lake Bed 1/2 mile SW of 1984 camp site.

9 [illegible] [illegible] 24-03 [illegible]

July 13, 1984 Haughton Astrobleme Rained x windy all day Visited by Haughton River Geophysicists abt. 11 am who brought warm fresh BAKED RASIN OATMEAL COOKIES from their camp 2 meters away. Spent much of morning brain- Storming on Arctic as center of pebrisorocetyl evolution & other ecological/adaptive aspects of early Tertiary BIOTA. Decided that high crowned serratomorph teeth of early ferrisoids let them grind up tough arctic veg. Especially during winter when only Twight x hrs. were available. Distinguished between Animal groups originating in Arctic (Pebrisos) & those merely radiating in from elsewhere (Coryphodont)

In the afternoon wrapped the rhinoceros Dicerosbicornis (mix-Mucceus) & the Tragulid. Rain continued temp at 7pm +5°C

7/14/84 HO temp +40C Houghton Astroblene 8453 LAKE beds sand massive friable TAN dolomitic clay? silt no obvious bedding - rusty Covers Ejecta spots, BLANKET fills in a series of small remnant S & E of here Abt 1/2 mile W is Bedded TAN lake silt ( at Fish Conc. site. This may not represent a single sand pulse in shoreward facies of LAKE beds.

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7/14/84 Haughton Astroblome 8454 margin of lake bed, varved vf g ss/s/st & mulst. varves 1-3 cm thick medium gray s/st, & tan s/st,ss, -> pollen sample 8454 lake had periodic overturn lake sed in this area overlie the ejecta tcj blanket. although contact is not exposed in this stream cut.

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7/14/04 SECTION 8455 BASE OF LAKE BEDS HAYHTON ASTROBLOME "Hayton Fm" SECTION STARTS ABT 20' above Tej (Ejecta) UNIT I Thickness Description Section shown in stream bottom about 1 m above the ejecta 1 330 cm covered interval, dump from base of section tan very fine siltstone or clay rich sandstone 2 65 cm Very fine light tan, massive, SA to A. Gandolite or siltstone Sample 8455a 3 12-20 cm grit dk gray to tan angular to rounded mainly angular coarsening upwards clasts to 5cm at top basal contact irregular "debris flow Sample 8455b 4 40 cm Very fine sandstone or siltstone angular clayey lt. tan. Carbon laminae in basal 2/3

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Unit Unit 4 Color Thickness Description 3mm cemented dk gray silt at upper contact 5 48 cm med grayish tan muddy siltstone becoming mudstone in uppermost 15 cm 6 25 cm repeating unit-5 becomes mudstone in upper 10 cm. Limonite yellow streaks 7 70 cm med gray tan vf-a clayey sand or siltstone, angular, apparently massive occasional limonite staining. with clay laminae in lower half. (5mm thick) 8 interbedded siltstone, silty clay yellowish tan limonite stained interbeds 3-5 cm

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Unit Thickness Description 8 cont 70 cm with sand inter beds in open half meters 9 28 cm tannish gray clay gradual to unit below massive plastic mudstone flat laminated grades up to a silty unit and grade into unit 10 10 50cm vfg sand or siltston clayey yellowish tan with scattered limonite mottling. 11 75 cm alternately coarsening and fining upward in units 30-50 cm thick. - coarse is alt yellow - tan siltstone w/limonite - fine med tannish gray mudstone massive plastic (angular-feels rough)

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12 30 cm med gray fissile mudstone Collen Sample 8455 C 13 2 cm lt yellowish gray siltstone 14 32cm interbedded mudstone siltstone sequence starting with mudstone beds 2-5 cm thick with limonite concretions upper 15 cm is broken Possible mature soil chicky are weathered with limonite staining. yellow to red 15 185 lt grayish tan to yellowish siltstone with thin ledges of limonite in basal 10 cm. basal contact irregular. above 1.5 meters, lt yellow gray planar bedded siltstone, angular silt. 16 gravel surface of plateau - end of section

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Sec. 8455 GRIT of UNIT 3 Shows no signs of water TRANSPORT & COARSING upward Represents a debris flow Showing slopes of CRATER Still unstable at START of LAKE DEPOSITION. Means LAKE started to fill CRATER soon after IMPACT. So mid Miocene DATE on RHINO fixes THE date of IMPACT as not long before. OFFSET SECTION 8455 d' 30m N of 8455 to CATCH ADDITIONAL beds at BASE of ORIGINAL section UNIT Thickness Description base of section ~ 1 meter above breccia 1 135 corner interval in lake beds

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2 9 cm parallel laminated varved argilac siltstone yellowish-brown 3 3 cm med brownish gray mudstone 4 215 cm grayish-brownish siltstone parallel lam. w bases Carbon on lamination 5 grit, highly irregular 1-8 cm pinching out subrely 1/2 m to the north highly irregular upper and lower contact cut off by intrusive of overlying unit Sand unit 4 6 same as unit above grit in section 8455 (unit 4)

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7/15/84 Temp +03°c 25# 8456 Haughton Astroblome SITST w pods at CLAY bearing twigs, branches & possible roots Samples of wood taken for IDNT, looks like Conifer wood. Clay pods possibly root masses that were carried into lake. Marked on photo A1674F-22 8457 Section up

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7/15/84 25 @ 30c 8457 SECTION Type for (Haughton fm.) Starts at base of slope about slumped apron conceals rest of formation. UNIT Thickness Description base of section is Haughton fm. in a series of lt yellow gray silt/sile probably equivalent to top of section 8455 this from leveling over to previous section 8455 and also color sequence 1 95 cm. med yellow brown vfq SA clayey, SS massive with small lens of gray clay and thicker lens of brownish clay towards the top. 2 130 cm Lt. tan coarse silt w/med gray massive med interbeds added on interpolation date 3/14/88 225

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3 100 yellowish gray massive mudstone becoming brownish with streaks as limonite cements towards top 4 105 SA to A coarse silt lt. tan brownish clay rich parallel lamination in places 5 95 cm Mudstone yellowish- gray brown laminae A base 6 100 cm SA to A coarse s,lt lt. tan (lt. yellow tan slope) 7 240 cm mudstone and siltstone in tabular beds mudstone red yellow brown siltstone lt. yellow brown limonite ruffles. thin limonite crust on slope which weathers yellowish tan 640

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8 125 cm Lt. tan Siltstone SA to A Sample 8457 a for 1/1th massive tan weathering quartzose? should be examined. N.B. typical of all siltstone in this section reddish brown in basal five cm. Some suggestion of parallel bedding at 1 cm intervals spider by cante- sweeps in cut face 9 125 cm plastic mudstone med. yellow gray brown laminae at top small pyramite lag on slope with silt interbed at top

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10 35 course siltstone Lt. yellow gray with yellow + gray streaks. S4 to A 11 /55 med yellow brown mudstone weathering Lt yellowish brown with limonite nodules sun visible! limonite nodule level occurring densely at 60cm, 90 cm, and 150 cm 12 64 cm laminated siltstone yellowish tan with abundant limonite nodules which form a distinct layer, interbedded mudstones more mudstone towards top - grading into 13 13 "wood silt" Loc. 8456 laterally Lt tan A-SH clean silt 254

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13 cont 260 cm with lignitized wood fragments, twigs, stems and maybe root ocinera, in clay blobs laterally (root mass?) occasionally mudstone masses. become a mudstone at top 14 190cm orangeish-yellow silt with mudstone lens, paleoconies more clearly brushed upwards) where it is a fine parallel lam. siltite (orange?) TRAGULID level. loc 84-02 Also Shrew x Rabbit brownish-red slaby concretion up to 5 cm thick v. fine sand layer at top of unit 15 200cm interbedded mudstone (mst brownish gray) and tan siltstone and scattered red-weather limestone sty concretion

Unit 17 is base of Rhina loc offset

16 173 cm tan A-5A silt massive 17 290 cm interleaved mudstone brownish gray and tan silty lac w/ slabby red weathering brown Wg fmnite slim concretions 18 265 cm lt tan A-5A silt massive typical. ridge-former (cliff S17ST.) slight reddish brown stain at base Offset 19 90 cm Mudstone but only very slightly silty yellowish brown clipply with limonite staining gray and brown interbed 20 70 cm siltstone with clay grey stringy and limonite stained layer +/- basal 30cm

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21 180 Interbedded tan siltstone med grey mudstone with limonite staining at limonite centers brown - dark red weathering cones forming prominent bad on weathered slope concretion end at 130 mudstone greater than siltstone interbeds 1-3 cm -> Rhino level at 102 84 D-1 22 80 Same as above except no concretion and siltstone greater than mudstone 23 90 Lt. tan coarse silt massive A-SA Typical 24 86 Med tan mudstone grading up to lt tan Silt in 6/10 m. 25 125 Mudstone. 26 170 Siltstone massive Limonite stained at base mantles by thick rubble cap. 28

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27 180 cm rubble cap top of section and also the highest point of the lake bed deposits End Section 8457 32 725 886 650 254 250 690 225 36.32 total thickness 36.32 meters

175 4 700 175 3 525 175 4 700 + 0.5h m

INTERVALS IN TO sec. 8457 LOC 84-D1 Rhino, Ironstone above UNIT 21 of Sec, 8457. LOC 84-D2 TRAGULID 15 630 cm below BASE of unit 18 Pollen Sample 8458 From black carbonaceous ls, abt 30 cm Thick 7.5 m below top of Buote capped by Yellow silt w/ Fe stone. Pollen Sample 4.75 m below Rabbit layer here.

HI 168cm Interval section only 84/S.9 Shot through frb loc (9) to lagomorph bed. Starts at contact of Lake Beds with Breccia 1"1/2° dip unit thick Description 1 Tan to lt grey beds 2 hi that incorporate much + 10 cm of the breccia = 34/8 cm 2 4 hi. lt. tan silts + shale, + 1m with limnite ledges flat plate ls concretions with fish + birds in 50 cm levels starting at 165 cm going to 37 hi. = 760 cm 4 hi. 4 hi. + 1m lagomorph bed Lago-morphs 11 M above

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7/15/84 8459 S End of Rhine Site Hill abt '4 mi S of Quarry Lith Sample of Red Limonite cemented Vlg SS. Angular thin weathered face appears hydrated but no trace of this appears in fresh break. Thin section.

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7/16/84 30 @ SC Temp +40C Haughton Astroblems E. of Rhinoceras Creek Haughton LAKE Beds Toward Central positive area of Crater TAN vfg SS capping terrace of rubbly- looking, barely reworked Brecchii. 8460 Central Albion as mapped by Robertson no Haughton Fm. This also so. to part of Mullerger Section 8H61 SE of CENTRAL MARS Marked on photo Grey breccia material underlying TAN LAKE body Grey- contains a reworked mantle of weathered rx frags, clay clasts, part is a bedded conglomerate 50 SA TO 5r CLASTS 1/2cm

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7/16/84 Haughton Assemblage ON CENTRAL MASS Rare platey is on in rubble on shoulder at 8460 And to top of central mass rarely. All rubble is highly angular & Shows no sign of being glacially transported Therefore it was let down onto this feature. :: LAKE beds once higher than CENTRAL MASS. Found these thin bedded is to be Paleozoic From Central mass ws deep water gap is evident - :: LAKE level lay at top of Crater rim. :: LAKE Deep, sed once filled to level of central mass now dissected This would explain LACK OF SCAVENGING OF VERTS

Blythe Robertson Gravity, GeoThermics & Geodynamics Earth Physics Branch DIV Energy, Mines & Resources OTTAWA, ONT. KIA 0X3 Botetoma Survey CJES VOL 20 NO 7 P 1134-1157

7/11/84 8460 (cont.) LACK of apparent current feat, or sorting of lake sed. Noted in section as they would have lain well below wave base in a relatively small lake. Streams would also have been small, mostly directed away from upturned margin of crater rim. - Paleozoic peneplain into which crater is blasted was uplifted in Plio or Pleist. - Platey limey sh is paleozoic not lake beds 8461 By the Roberton reports are red ss flat platey beds remnants on breccia indicating former presence of lake beds over breccia

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7/16/84 Dinner at Houghton Arms Camp Trapped by Honky I think. 7/17/84 modules of flat platy ls. N1 of type section are at any the level of the wood sand.

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7/18/84 Haughton to Lake Hagen. Packed camp at Haughton and were picked up at 3:30 by Dunk (Richard D. Duncker) in F-15. Flew low over Collin Archer Peninsula, Graham Island and the shore of eastern Axel Heiberg and to Eureka. Due to bad snow storms which made following his course on an air navigation chart one saying that he just got lucky sometimes in locating himself. Magnetism had at Eureka while we refueled. Flew up 6 mile mile 7 Blacktop Ridge to Smiley F and flew from the head of Smiley across its pass to the Lake Hagen drainage. Dunk flew just above the ground and close to its cliffs. Arrival at "Amber Point" camp at 9:00. Dunk left us after came in low on a steeping run and made a skillful stop in landing. Magnetism had had.

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8462 7/19/84 LAKE HAZEN 1/4 mi W. of Camp on N Shore LAKE HAZEN XOW POTT 8462a Pollen Sample from 0-4 in above LOWEST COAL 1 1/2 m THICK 8462b Coal sample LOOKS BITUMINOUS & NON WOODY 8462c Megaflora IN CLAY FE STONE ON BEACH META Glypto ~PLAT? Cercidi? Acer

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7/19/84 16° E 30 φ, E 90 φ Clouds ? 8463 Clay Fe Stone W leaves Appears to be a soil roots through barren ~CLAY FE ST x LEAF MATS. Taxodium? & Metasequoia maple? modern type Betula Plat. reynoldsii Cercidiphyllum Cercidiphyllid type Entire lf. w rounded base Alnus Ulmus? Ginkgo Glyptostrobus Cocculus?

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7/19/84 LAKE HAZEN 8464 Osmunda SITE Coll. M. Dawson R. Schuch This is combined w/ Brown BUTTE SITE in the first Collection Any fossil other than Osmunda an Equisetum should be renumbered 8465 for 'Brown Butte'

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7/20/84 E 40 □, 7□ 100c 8465 LAKE HAZEN BROWN BUTTC CLAY Fe STONE associated w/ a lignitic interval. Exposure partially Tundrafic Cercidiphyllum seeds on chlorate rachises Acer (silver maple group) Metasequoia Glyptostrobus cryptomerioid Thelypteris iddingsii "Langeria" n. gen., show to be J publ. by Wolfe mid-Eocene Platanoid P. caywoodsi Betula ?

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7/21/84 8466 3 miles N from L HAZEN on GILMAN RIVER Fossil IVS in SITST FLOOT. Glypto Strobis Cercidiphyllum ? Alder ? Acer MENISPRMACEAE MEAT CACHE on SMALL LAKE ON WAY TOWARD LAKE HAZEN. Squared off door w/ ROCK SLAB making a chamber 3' deep - 2' high x broad, stone roof made by laying FLAT slabs across other SQUARED [illegible] 1 side support

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7/22/84 LAKE INDIAN 8467 Mails site 2 ES set of coals & shales w clay Fe stone overridden by Thrust fault w/ D mina fm. Monocarp x Dicot lvs in clay fe st Pollen sample. 9467 a From dark gray CLAY about 20' 120' above lake 8467a is 30' above good bituminous COAL 8467 b coal sample from coal 30' below a. 8467c PLAT. nobilis & Acer sp.

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7/22/80 8468 LAKE HAZEN. Rofler 5amp 8468 20 cm 20 Below 1 metre Thick Coal w amber in a medium grey fissile shale COAL = BITUMINOUS Mials Sec 4

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7/22/84 8469 top of s11tst - ss. mbr mulls station 21 8469 a. Grey mudst un t. 6" thick in intercalated friable rusty SS & carb mudsats. lies in interval between top two coal beds in mullis sec Bg. Comminuted pl. frags & carbonized wood in sand ss PX C 8469b 50-60' below 2nd coal bed Fossil ivs (very poor) in coarse s11st meta ? maple or cercid?

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7/22/84 8470 S. Boulder Hills 8470 a Pelletier Dark gray SATY-C/H MUDST. Underlying prominent J15hrd X-bddrd Jell. Tan med gr. SS, w dark (bands) & stark wool app. 1/2 m Thick

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7/22/84 8471 turnabout 8471a. Clay Fe Stwtc. 10m above pollen site w Equisetum PIAT Metasequoia Cercid Ainus x mssu phyllum comp. 8471b Pollen sample D, Grey Clay St. overlying platey BITUM compd beam w amber app 30 cm thick. ca. 25m above Imora Fm

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8472 Turnabouts River Lower E.S, Fm ubus 60' pollen sample above contact w/ The Iminia Fm. 9472 pollen sample From a Platey mod grex mudst. 1 m above coal. 8472 b leaves Platwoiils

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87+33 7/22/84 N. Boulder Hills - Sandy Channel W. Carb is x some coaly m/s, no lks

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AGI DATA SHEET 17.1 Grain-size Scales By Roy L. Ingram, University of North Carolina GRAIN-SIZE SCALE USED BY AMERICAN GEOLOGISTS Modified Wentworth Scale - after Lane, et al., 1947, Trans. American Geophysical Union, v. 28, p. 936-938 GRADE LIMITS U.S. phi mm mm inches Standard Sieve Series GRADE NAME -12 4096 - - 161.3 - very large -11 2048 - - 80.6 - large -10 1024 - - 40.3 - medium Boulders -9 512 - - 20.2 - small -8 256 - - 10.1 - large Cobbles -7 128 - - 5.0 - small GRAVEL -6 64 - - 2.52 63 mm very coarse -5 32 - - 1.26 31.5 mm coarse -4 16 - - 0.63 16 mm medium Pebbles -3 8 - - 0.32 8 mm fine -2 4 - - 0.16 No. 5 very fine -1 2 - - 0.08 No. 10 very coarse 0 1 - - 0.04 No. 18 coarse +1 1/2 0.500 - - No. 35 medium Sand SAND +2 1/4 0.250 - - No. 60 fine +3 1/8 0.125 - - No. 120 very fine +4 1/16 0.062 - - No. 230 coarse +5 1/32 0.031 - - medium Silt +6 1/64 0.016 - - fine +7 1/128 0.008 - - very fine +8 1/256 0.004 - - coarse MUD +9 1/512 0.002 - - medium Clay size +10 1/1024 0.001 - - fine +11 1/2048 0.0005 - - very fine -12 1/4096 0.00025 AGI-DS-rvd-82

AGI DATA SHEET 16.1 Graph for Determining the Size of Sedimentary Particles by the Data Sheet Committee, aided by George V. Chilingar DARK PARTICLES d = 0.25 2 3 d = 0.5 4 d = 1.0 5 d = 2.0 6 d = 3.0 7 d = 5.0 8 d = 7.0 1 d = 0.1 d = 10 mm d = 15 mm Place sand grains or rock particles in the central part of the circle. Compare the size of the par- ticles with those on the graph with the aid of a magnifying glass. Record the corresponding number (1, 2, 3, 4, 5, 6, 7, 8) in notebook. For samples with particles of varying sizes, record the most common size first. AGI-DS-85

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