Eastport quadrangle notebook #2, 1907
Page 48
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Transcription
496. A few specimens of Clara Lingula were collected at 2446 B. (Sub. E.) - Beneath the purple slabs 2446 B, comes a lens of dark coarse tuffs, merging D, only a few inches thick, 50 feet north of the point and thinning to 6 feet in the space of 150 feet southwest (Ft). The purple slabs 2446 B are enclosed in this section by 10 feet of green tuffaceous tuffs. KELLEY POINT - HARDON CLARK FARM. One of the localities mentioned in the old name reports as yielding good fossils in the old Harden Clark farm. This is now owned by a Mr. Fitzgerald and is situated in the S.W. corner of 2-53-7, the N.E. corner of 2-52-9, the N.W. corner of 5-2-1 and the N.E. corner of 5-2-3. The slabs strike W. 80° S. and dip at an angle of 45° N. and are interlaid by a large mass of gallo of intermediate texture forming Kelley Point, north of this galbo the slabs appear to have been measured for a length of 570 feet along the beach exposing thicknesses of __ ft. for this portion of the series. The rocks are fairly uniform bluish gray shales, splintering readily in places nearly every slaty and also showing several leucocratic seams, together with thick layers full of fossils, of very exceptional character. The section is 5-2-3, 7 C and includes Chonetes denysii abundant Camarotoechia rare except in a couple of seams where it is abundant. Lingula (flattened small) rare Orbiculoida rare Actinopterella common Crammysia impulata common (large) occasional Nuculites rare Large Modiolopsoids common in clumps Murchisonia common in clumps Tenuaculites M. sp.? rare Cornulites rare Bostrichia common Dalmanites rare Calymene " Fish spine occasional Orthoceras rare. This mass of shales includes a little patch of galbo which appears to project my through the shales from an underlying stock. A specimen is 172. It is of the same texture as the main galbo mass of Kelley Point, but is only a few feet yards broad. The shales 2-53-7 C are also cut by a narrow 2 foot rhyolitic porphyry field (spar plagioclase) of whiteish gray color somewhat similar to that of "Lake 160" rhyolite porphyry dikes strike N. 80° W. The main mass of galbo south of the north spur of Kelley Point is replaced by about 125 feet of shales, bluish blue gray, striking N. 80°-90° W. dipping 45° to the N. These shales are different than those including 2-53-7 C, as is proved by the occurrence of some tuffs, after the galbo (tuffs are absent in the upper patch of shale). These tuffs include an interlaid 3 ft. bank of gray rhyolite glass with feldspar phenocrysts. Specimen 117A. One of it is 6 ft. of shales with frequent layers containing an abundance of wood consisting largely of feldspar phenocrysts. The feldspar seams are frequently stained to blacken from 0 to 2 inches in the space of a few feet and are more closely crowded together thicker at the base immediately merging 117A. A specimen is