48 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



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Feet 



Massive, coarse-grained conglomeratic sandstones containing 

 numerous lenticular bands of conglomerate. Occasional 

 narrow bands of clay shale are interbedded. The eastward 

 continuation of the conglomerates appears in the outcrops 

 at Blakeley Rocks. These strata persistently pitch to the 

 north at very steep angles and extend as outcrops from the 

 north shore of Blakeley Harbor northerly for 1500 feet.... 1,300 



(A) 



Sandy shales exposed beneath the waters of Blakeley Harbor.. 1,400 



Brownish gray, massive to slightly bedded, sandy shales as ex- 

 posed along the south shore of Blakeley Harbor for a dis- 

 tance of one-half mile northwesterly. Five hundred feet 

 stratigraphically above the beds exposed at Restoration 

 Point is an excellent fossil locality, No. 13 2,400 



Shaly sandstone grading in places into a sandy shale. Bedding 

 planes are commonly well defined. The top of this belt is 

 located at Restoration Point 1,200 



Shaly sandstone gradually becoming more sandy in depth. Bed- 

 ding planes, very distinct 450 



.(E) 

 Massive, sandy shales. Bedding planes, fairly distinct. Fossil 



locality No. 305 350 



(F) 

 Massive, brownish gray, coarse-grained conglomeratic sand- 

 stones with interbedded bands of coarse conglomerate, the 

 pebbles of which attain a diameter of two feet. Many of the 

 pebbles are composed of andesite and others of light colored 



shale and sandstone 1,800 



(G) 



Total thickness 8,900 



The westerly continuation of the strata as exposed in the 

 above section reappears in cross-section A A'. The upper beds 

 as exposed at Point Glover appear to be the equivalent of those 

 in belt (C). The extreme upper portion of belt (G) as ex- 

 posed at Orchard Point is the westerl}^ continuation of the nar- 

 row conglomeratic layers occurring just east of Beans Point 

 on the south end of Bainbridge Island. The conglomerates 

 outcropping at Quarry Point are the equivalent of those ex- 

 posed at Middle Point. From Middle Point they cross Richs 

 Passage and appear in the cliffs at Fort Ward on the south 

 shore of Bainbridge Island. At this point they become less 

 conglomeratic and more sandy. Near Restoration Point they 

 are the equivalent of the upper portion of belt (D). The 

 shales and sandstones exposed between Point Glover and Mid- 

 dle Point are to be correlated with the sandy shales in belt 



