Eastport quadrangle notebook #2, 1907
Page 11
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Transcription
Lubec Peninsula. July 3, 1907 (Wednesday). along the shore southwest of Lubec Bluffs light there extend for a mile southward from Woodwards Court a series of exposures of massive dark slate slabs with on their imined thin calcareous seams; and in some portions of the slates these have become concretions which have been weathered out leaving empty holes. The slates are metamorphosed shales of a dark blue color which have nearly lost their cleaving planes and which are extremely friable. Most of these fissures extend in one direction, & are frequently very close to gether giving more or less perfect slaty cleavage. Besides this slaty cleavage there are also several series of joint planes; these numerous joint planes traverse the plane & dark color together with the even texture cause the rock to resemble at first sight a massive much jointed trap, and the result cleavage is masked by them. very total absence of bedding planes in the more massive portions. The presence of calcareous seams above the upper edge of the rock which also inflates along more or less distinct banding. (For strike & dip see C.S.B's notes). A search was made for fossils in these slabs to half a mile, as well as in the slate shales. At the southernmost edge a mile south of Woodwards Court occurs but at two traces of fossils result. big fish bones or wood fragments and three or four linear deposits of mineral which may be pseudomorphs of graphite. These workings are C.S.B. No evidence in favor of their fossil character is chiefly the structure strictly parallel to the bedding plane of the rock, and their more or less regular banding. The evidence against the graphite nature of the fossils so called surpass...