Eastport quadrangle notebook #2, 1907
Page 21
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Transcription
Horizontal columns structure the above trends N.53° E. and re-separ- at-ed from the top by a 3 foot feature running N.53°E. and describing a fault. The feature is in pieces composed of green shales leaving truly a fragment of large lamellibranch (first collected) and striking N.23°E. shales vertical, comparable with Rodgers Island beds: gabbro dike at northern end. 1106 = gabbro- underneath of redway north of No. tube dry wharf south of factory. The gabbro continues to far sea Reynolds Cove. In the little cove in central 6.24.7, a reconnaissance in company with Dr Austin shows that the laur dikes 1093(page 24) are gabbro, and the so called acid volume 1092 is an ashore contain- ing fossils in a seam. This ashore is unrolled, massive, and over 50 ft. blocks apparently and contains in the lower part of the seam one to 5 inches thick in which Dr. Austin discovered some Platystearina- the gastropoda edge of clam rubs an inch thick. Else where he contains some large lamellibranch with by students description of megacoma in outline. Here fossils 6.24.7c. The massive upper side of 6.24.7 b may be the same: the fossiliferous seam is a very nearly horizontal dipping bed on an eastwardly. It rocks in a tuff, including angular small angular fragments of pink rhyolite and rounded gabbro of raw labrum with (4 to 5 inches) where) of gray rock of limestone. Below this the rock resembles that called dolomite in Brick Point = 1107 which also- the rock is mottled and includes small angular bits of pink rhyolite. = 1108. 1109 is the lauri dike on the northwest side of the cove. The acid 1092 is a dike the re- latures of which are shown in the ac- companying sketch. Monday, July 15, 1907 Pleasant Point (cut. from notebook I pp.15, 20.) On the west side of Pleasant Point beginning at the cape in 3.33.7 where occur alternations of rhyolite (1076) and gabbro(1077). We find a large mass of gabbro followed by an extensive series of exposures of red and grey shales flag, some dust beds. From Colon upward and passing northwestward we find (a) 4 ft. grey beds. Alternations of thin flossy seams 3/4" thick with gray porous shales of similar thickness. A foot layer 2 inches thick upper part. Strike S.70°W., Dip 35°N.20W. [illegible]