Field Notebook: Bermuda, New Brunswick, Quebec, Vermont 1929

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320 Pages
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Hyd Miller Cliffs at Mt Maguasha. In the crest towards Flemons Point the light greenist Devonian ss and sandy sl are very horizontal but begin to arch having dips to the crest from 2° to 10° and dip to the north at about 5°. The centre of the arch is to the east of the Maguasha draft, to the east of which for some hundreds of yards one again sees no outcrops. Then seen they dip at about 5° and further cast steepen to about 15° or from there and here they are stated upon the Devonian flanges under the sea. red to the crest from the nearby Bonaventure. Saw a few Heliptychius scales, me for first tail, two small Archae- pitys, and considerable plant fragments. All the Ordov ss are lim- amons shipped and in one place saw a little lim dredging. The Devonian goes far to the crest, two miles east of Gino Point. The Compston Drw is opposite the farm and to the cast of this lumbering town. Paid close attention to the conglomerate bed 10' thick to the cast of the little stream west of the draft, it was Boulder conglomer with gray granite and igneous ones and in signs up to one foot across, All are well rounded and most of them are of own quantity and the granite. Some of the are striated. Got me five boulders of Walpits and another dilemia one with a coal. Near the stream saw two large boulders (18" across) that cleaved once are a chalybite, weather a dim time. striated, but these were loose. All about this stream and up it are many loose large boulders and partly are of Pleistocene scratching. There is then no evidence of glacial action in (See second page to right)
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Perce, Quebec, Sunday August 4th - 1929 Stopping at The Havana near by Ernest Riard 3.50 p.m. day 21.00 a. night. This is the fourth Sunday out from New Haven and it is raining, he usual thing on all of them this year. Hovins are have breakfast at 8. and by 9 A.M. are away for Perce' others are arrive at 11.30. Corpus girl called to say good-bye and all the morning in the rain he has the blue-devils and finally I had to scold him and told him that if he kept on crying in the cabin among his scattering the church-going people, that he could go to the devil. He took it properly and straightened out but died down in his deck chair soon as he got pains - the loss of his sweet heart and the fame of the Professor. In the evening are best uprest again. We are get there from one we on the Macquarie rocks and appear to remain on them to ocean Anse du Cap. While cross- ing this region the thought came to me can this area be an old axis of sea separation running to the south the Lil and Olev, and to the north the Richmond and the Oler. If so the axis came into being after the Trenton series and before the Richmond. There will then be two sea ways in the St. Lawrence gorge - cline, (1) a northern or Salpe trough and (2) a southern Port- Daniel-Dalhousie-Jacquet River Trough. The Richmond then is restricted to the northern trough followed by the Olev, while the Lil, Held. and modified later Olev. is confined to the southern trough. This all is very much worth while looking into.
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"August 10, continued Faith E., at about beneath the Pic occurs a crane sometime of considerable thickness. See [illegible]. These SS strike N. 30 W. and dip from 45° to 60° S. and somewhat. All of them constitute what I call an arc rising to Peruano. He decided for awhile at the Three Sisters, where the beds are as usual very critical and troubling in dip and strike. I assume it is more [illegible] up to the cliffs gone at the north end of Cape Barre. The irregularity in deformation all along the Buraille saves me the impression that the structure is a closed syncline in more or less incompetent beds. Or this is an overthrust favour given here cutting out many folds just to Peruano Barre. Once around Cape Barre at low tide one can walk [illegible] all along this coast, but there is no way to getting here except by our boat, or coming from the north by walking. It will take many days to travel and surround the structure and determine the delimitations of the formations. The above interpretation is very different from Clarke's interpretation. I did not at once see the anticline under the Pic as he has it and the syncline to the north. Those structures as he has it are transverse to the actual structure which appears like a faulted or thrustled broken syncline or anticline. Which he cannot make out as yet. The whole Pic d'Amore is either parallel to Peruano ls, but as Clarke says, of they underlie them, then there must be a fault between Peruano Rock and Ant. Joli and the Coûte to the south of the Three Sisters. I am disposed to regard them as younger than the Peruano ls.
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"August 12 continued" Twr decided syncline with the SS again running to the south this usual dip, then Further S the dip steepens to 60°E and the strike at N, and S in the same direction there soon appears a little fault but the throw is very small. This is about like this This dip from steepens to 20° to the S. Faults? The dip goes This is probably Goldring's fault, but it is not of importance. And the SS are decidedly arkosic and granite pebbles occur as large as one inch across on the surface of the bedding planes. The second point S of Red Head or the next one S of Chian Blanca is made of a truldu conglomer, 15-20 feet thick, and is confined able to be so far north. This truldu bed is like those of Point Point and Belle Ounce. The dip here is about 20°. Folding adds it to. To the S and E the shore is now very straight about 1/3 mile to Whole Head, made of the same kind of green SS where another conglomerate or more. little formation appears. The dips all along here is about 20°. I am now convinced that all the strata from Belle Ounce around Point Peter to Chian Blanca are Susquehannock Sandstones and Pailkypton material is not rare. The sandstones are an olive been green with thin beds of a finer makes thicker than have pebbles 1/2 naturally and SS. When these SS are red this coloring is due to oxid iron from above. The SS are often current rippled, and more or less firm bedded and sometimes decidedly dr. Some of the shale layers are much cracked and some SS surfaces other filling up into them. The conglomerate are cemented
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August 12 continue and sand to the same green argillic sands and never to hematite, as in the Bonaventure. The ss on their surfaces include many small falls and small pebbles, and sometimes one sees clear overstream agate. evidence of growth in one direction; perhaps all is of the freshwatery side of a delta - activity of the geomorphology. Out of this engl we collected a poor shellfish (appears to be an Ostracod), and in another ls are small forms, not looks like a Pleistocene. forms. Many pebbles are of a bright-white crystalline ls, but most of the pieces are of a light grey ls, and some are crinoidal. Rarely some quartz paths and rarely a granite pebble. All found together by arkose a coarse quartz sand. The pebbles are nearly all well-rounded. This material could not have been rolled far. Creates the impres- sion that there was a delta from a mountain area formed out into at sea not far until, the present Bay de Chaleurs. Onkake did one see a true Bonaventure in which the current is a hematite, and all the pebbles and fragments attain and angularity to large sizes, seen in the Bonaventure. ocean in the Bonaventure After Belle Anne Crispen saw some jasper pebbles. Therefore The same sands sometimes have some red grains but these are more or brilliant red as in the Bonaventure. More of the red coloring of the lower ss relate to oxid work from above or due to weathering. from chim Blanche to Point St. Peter. All along one came up in the section, and where the ferric engl. comes in, Mind folding calls it Bonaventure, but unfortunately to see darkness under all these basse ss engl. Put up again at the Baker Hotel, but roomed in Captain on him my first trip down east clearly. Bakerham's Old Red Sandstone home, the same grand home I called A
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August 12 Continued. Clarke in the 18th Rep. of the Directors of the State Mus. 1924 says this: "The critical region for the precise determination of the stratigraphy of the Basque sandstone, and the incoming stages of the Bonaventure formation, is the extremity of the St. Peter peninsula" (125). The Upper Basque sandstone in the St. Peter region "is gradually replaced by the Bonaventure sediment" (125). South and east of the faults near Chim Blance the green-pig Basque sandstone are followed by "at least four beds of conglomerate separated by by broad intervals of red to brown shales, the first of these, of lighter shale than the rest carrying plant remains of the same character as those in the Basque sandstone. The entire series on this north shore is terminated at St Peter point by a very heavy bed of conglomerate which is continued out ward to Plats island" (129). Clarke caps me and concludes that these congls. are all of the Bonaventure being the transition to the true Bonaventures. To me all of those congls. are but beds in the Basque ss and that they have nothing at all to do with the Bonaventures. The "Bonaventures" to the N. of Grand Crique shore and that under the Richmond area are not Bonaventures, but some part of the Basque ss. The B. j. St. Anne and the Pic is true Bonaventure and so would that of Bonaventure Island. The "Bonaventures" on the top of the Beaumenne cliffs is also not true B, but a part of the Basque series. In other words the Basque ss becomes more and more congls. and red towards the top of the series.
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Sagabeck, Sunday, August 25 1929 A fine bright day and we are off at 8.30 A.M. At about 1 1/2 miles N. of Val Brilliant one comes to fields to the shore of Lake Oraphedria. Here the Lulurian quartzites are exposed dipping at about 10° N.W. About 1/2 mile N. of Val Brilliant [illegible] beds changed to N 57° E, but farther S again over as usual N.W. We traced it all the way to in front of the saw mill and the R.R. station. Saw no fossils, rarest nippled bit in one place cross- budded bit near gravel of or. Toronto, the S the plain over main course. South of Val Brilliant one could discern no further on the lake shore, extends, but 1/2 miles south one could look across to the shore of an island during Albert's highland series (an adnate emph.). In all this distance the Lulurian is not fully involved in the fields of the Orthodome Outcrops that stand high to the SW of Val Brid. South of Val Brilliant about 1 1/2 mile we trot a W road up toward the Old P. out, and soon on the south side of road one came upon the Lul. quartzite dipping at about 85° N.E., Here the Lil. is clearly involved in the fields. A little farther W on same road in a tract to study dipping flyschmuds rocks (ls) furnished a few small fossils among which is an Ordo- aria suggesting Devonian here. There must be a fault has angry side at least 600 feet thick across the whole Lulurian. We then returned to Val Brilliant for dinner (Chateau F.B.) and later went N. to a masters gray sand and after a time came upon a ls conglomerate along the road. It dips 15° N.W. and in 2 1/5 sands across to another gray a thickness of about
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August 29 continued If traps also occur and some are amygdaloidal, they may rein-quartz pebbles, and the feldspar pieces give the matrix an alkaline nature, but there is not enough feldspar to call it an alkali. The strata engl at the sea shore has blocks up to 8 feet across, but the vast majority of pieces are under six inches, and all are more or less out-rounded to rounded. The other rocks inland are often of smaller and more angular pieces. Even the quartz grits have more or less of this piece. The quartzites and conglomerates are mixed together. The Bric engl are regular strata engl, giving the majority of the loose pieces by the sea grinding against each other in what was formerly Lower Cambrian. Whether age of the former is in com- monly determined since the reef fossils collected are of Tedd C. The strata came off from a granite country bringing in much sand and rein-quartz pebbles, some feldspar and rarely a handful of grains. The shore rocks were cut by dikes or bad flows of trap. It would seem that the main mass of loose pieces are of the upper C or the Orgeonian, but if so it is curious that none have fossils. Probably most are of intraformational origin. The outer Bric engl goes in a broken anticline but near- thelands to the thickest area. The inner engl. goes are many ways from a few feet thick to may feet thick. Most have associated quartz grits layers varying in thickness about either the engl. All are interbedded with soft slate that can be cut not easily leaving the hard ones sticking up as difficult parts and producing the extraordinarily
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"To the east of St. Albans are the high cliffs of Porters grace, tremendous weathered fronts of the Potugonic sheet. It was a very hot sultry day and neither I nor had much energy to put into the drill and study. At 5 P. M. we went up for tea night at The Tannum where I stopped last year with Keith. Ludlow, Vermont, Wednesday Sep 4-29 A dense fog morning, sultry and hot. We leave St Albans at 8:15 and start S to see the high ls engl. terrmids S of St Albans. At the face along the outer side above the slates lie sandy cross-bedded normal grainy dolomite like sometimes that one fairly regular bedded. They have in them fair scattered pieces of dolomite and terraces the tips to ones. Against this S's lies a very large mass of white mg ls, and it looks like it lying on the slate as a residual. It is 20 ft across and about 10 feet high. Over the tops of the W end ls masses lie the regulatious ls engl. like the ones seem fortuity to the north, and the dip is to the east. This engl. mass appears to lie on the high slate slates, and it has of 10 white ls blocks up to 7 feet across. At the SE end lies another large mass that maybe a residual hill, it is at least 15 x 10 feet across and appears to lie on the High slate slate. Large pieces of the usual sandy dol occur as hills in the typical ls engl. Finally at the SE end we see the dark hue & this weathering hue or yellow only lying the engl. Evident the residual ls ridges over the cliff falls against which the den formed filling of local sand banks and healing up the ls and furnishing more kinds of ls to form the cast.
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JSTOR: Journal of Paleontology: Vol. 49, No. 1, p. 93 Page 2 of 3 Doc. 137 [illegible] DEVONIAN DALMANITACEAN TRILOBITES I. Saint-Léon and a. Grande Grève of Clarke (19[µ] older Formations and older authors II. York River and b. Grande Grève of National younger Formations Topographic Map 22 A/16 Cap-des-Rosiers Cove Cap Bon Ami GULF OF SAINT-LAWRENCE Dolbel Brook Cap Bon Ami Formation Grande a Grève Formation coulée II Cap Petit Gaspé Gave prépente b Indian Cove Cape Gaspe Shiphead GASPÉ BAY TEXT-FIG. 1--Map of the Forillon peninsula, Quebec. and bentonitic layers with an uppermost 1.5 m (5 ft) thick of "grass-green" beds (glau- conic shales and glauconitic calcarenites). Overlying this lower member is the Indian Cove Member, approximately 183 m (600 ft) thick of cherty limestones. A continuous sec- tion of the lower member is exposed, and fos- sils are therein easy to collect; no continuous section of the upper member has ever been followed, as its outcrop is largely parallel to the strike of the beds. Fossils in the Indian Cove Member, although plentiful, are difficult to extract, and silicified specimens are more easily collected. Problems facing the stratigraphy of the Grande Grève Formation are twofold. Firstly, the lithology of the Grande Grève Formation changes westward and, secondly, the faunas previously described from the type area of the Formation are assigned only with difficulty (if at all) to the present lithostratigraphic framework. The Grande Grève Formation extends some 225 km (140 miles) west of Cape Gaspé. In these areas away from the Forillon peninsula, the Grande Grève Formation is commonly dis- tinguished from the underlying Cap Bon Ami Cumming, 1959) are best assigned to Saint-Léon Formation. There is thus littl common between the Grande Grève Forma tion of the Forillon peninsula, and the strata ca by the same name farther west. The for tional names applied by those who map a particular area will be used here and ages of the trilobites from these beds will those ages obtained from the accompany brachiopods (identified by A. J. Boucot) Biostratigraphy.--The age assignment of the described fossils from the Forillon pe sula is a vexing problem. Sir W. E. Lo (Logan et al. 1863) named the strata of Forillon peninsula the "Gaspé Limeston and divided them into eight units (comm referred to as "members") (Text-fig. 2). U 8 corresponds exactly to the Indian Cove M er of L. S. Russell; unit 7 on the other h differs. The Shiphead Member is 39 m (128 thinner than Logan's unit 7, although the s upper contact of the "grass-green beds" Shiphead is used as a boundary between strata. Billings (1874) began a description the fossils of the Gaspé Limestones; the jority of the fossils described came from 8 and none is identified as coming from u http://www.jstor.org/view/00223360/ap040280/04a00070/2?frame=noframe&userID=82... 10/29/2007