Eastport quadrangle notebook #2, 1907
Page 38
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Transcription
Wed taken 1148 occurs 2 feet of green gray scapolite dunes flags art forly, soft. This rock is 1149 and greatly nodular getting more and more below 1149 but in media black mass of hard purple agglom- erate stuff which forms the east side of the division line prominently at the head of Long Cove. The rock is 1150 and must be about 20 feet thick. It is unbedded. It overlies three feet of after agglomerate of similar character but which is softer clear unweathered and has a more greenish matrix. A specimen is 1157 In the west fork of Long Cove there occurs several outcrops of various kinds of trappe and agglomerates. 1152 is a specimen from a hard agglom- erate, massive, 12 feet thick occurring on the east side of the Little Cove. The trapps in these caves are exceeding of variable character ranging from purple-black trappe porphyry to light greenish-gray mudstones and purplish agglomerates with a little scale in a few thin partings. One of these scaly sediments, 153 occurs in the middle of the west cove containing a solitary large Actinoptera = 52.9, E. The west shore of Long Cove is formed by the line of strike of an agglomerate similar to 1150 and 1152. Thursday Aug 8 1907 LEIGHTONS Point. On the east side of Leighton's Point in the lower half of 5.47 a broad trap dike secure just back of the shore this shore line itself being generally formed by an over-l ing fringe of shales only a few feet thick and striking with the above line N.152° W. to place the trap like bulge through the shales it forms the shore line. The lower end of the trap dike lies about 1 mill- meter or map level of south boundary of 5.47 and the trap forms the shore for a sample of rods to the north. A speci- men of the traps here is 1153, north of this the shales shut the trap and form the shore just but occasionally as has been said the trap strikes through and finally carves the shore line at the point ½ of a mile south-west of the black finger state Bay. A specimen of the traps here is 154. It places the trap in amygdular, the amygdules elongated so much as to make stick filled with snow white salts. At other places the trap includes masses of the surrounding thin gray shale as much as 10 feet thick. The shales in these coves are rolled up and close folded without fracture suggesting their having been included while still unconsolidated and in the form of plastic clay. As has been said before this trap is shut by some thin gray shales which form the shore line for nearly a quarter of a mile about ¼ mile S.W. of Clark's harbor shore are about 10 feet of these shales strike N.18°W. dip 70°N, 70°E. The upper most 10 feet--at the southern end--are more puffy = 5.47 A. The main mass of the shales next to the trap and about 20 feet thick is 5.47 B.