Eastport quadrangle notebook # 3, 1907
Page 10
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Transcription
12 starting spirally, with the direction to the west. The fault planes extend northeasterly. Perry Series, east side of Herseys Point. Just north of the gables of Gernot Point occurs a small patch of purple shale, and blue slate against a series of conglomerates which from the west strike E-W in the north end of 2-547. The contact appears to be a fault plane; both the purple shales and the conglomerates display different attitudes sufficiently distinctly --one strikes N-S, except that the complements in a couple of places displays cross bedding with a heavy mortcrotted dip, the gentle area much as 6 inches diameter, generally well rounded and cement for the most part of various shades of purple slaytes. Overlying these conglomerates is a series of black slate beds which are splatted & interwoven and only rarely show any lading planes on the north shore of the levee. The northern half of 2-547, the strike is N.30° W., dip 32°, N.60° E., and there in the strike and dips in the red rocks like it may not be found apparently as far as a millimetre S. of the northern boundary of 2-537 where in a little covered interval appearing on the east side of the point on the N.E. corner of 2-544, joint planes are well developed leaving S.60-65° W. in various places included series of joint planes appears. On the shores of Rodgers Point the brick red shale displays more persistent bedding than anywhere else and along the entire N. shore of Rodgers Point in 2-444, 7 and 2-439 the strike is N.12°-26° E. with an average strike of N.20° E., dip 22° to the East 20°. A couple of conglomerate seams are developed in the lower part. On the west side of the levee now occurring in 2-439, the red massive beds shappper striking N.75° W. with dip 90°(nearly vertical) to the south. The dip is not found from several loose bedded fine conglomerate calcareous bands in the massive red shale. This seams 5 inches thick is composed of a brown colored aggregate of quartz fragments with larger bits of purple rock. Specimen 1176 shows round strikes E.-W., dip 60° to the south. Some coarse sandstone & conglomerates several feet thick also appear from a few feet below; they display washed cross bedding resembling typical Purys and consist very largely of pebbles of quartz more larger, however than the size of a pea. 13 Pennamaquan River, West Pembroke Thurs. Tuesday Sept 5, 1907 (A.M.) The gray splintery shales appear on the west side of Pennamaquan River and in the road bed striking N.W.N.E. and dipping N.E. and south of the middle edge of the extreme north edge of the former north edge of 1-458, the gray splintery shales display somewhat progressive angular steps of 33° E. to N.E., the strikes varying from N.10° W. at the north west end of the exposure to N.35° W. at the S.E. end (see p.5-1). Drills 1-458a and selected) include a seam with Beyrichia V septata very similar to 1-457-2 B, and another seam with Tentaculites common Beyrichia magnifica ? Orthoteres? rare A perfect silent green sandstone seams with an abundance of calcareous concretions is exposed point = 1-458a. The edges is usually more scattered & this in a greater amount of gray slaytes than in 1-458a. A specimen in 1179°. Several feet above the base, the so called tuff for a couple of foot shows distinct undulous banding forming flaky field structure and the rock may possibly be lava. On the west side of the road near the tuff or so called tuff similar small shales to the south the latter dipping more the tuff. These shells are exposed for a thickness of 3-4 feet striking N.70° W. and dipping 16° N.E., at the south end of old cave striking E.W. and dipping 25° strike N, the tuff or perhaps is fed which (quizzes). The shales contain half a dozen calcareous seams full of Chonetes abundant Camarotocchia ? Tentaculites Common Gypsum joints, Abundant ? Phyllopods Beyrichia common The fame = 1-458 B., and the rock appears to be the equivalent of the northern part Yale London