Field notes, undated (4)
Page 19
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Transcription
shale. side of road, Newton. blue shale limestone with numerous fossils (crinoid byzpranus) especially desire found. blue shale limestone as with for- made to the cliffs. blue shaly limestone, front, water lime These limes just described turn to a marlstone structure or going a slight but more eastward. immediately below the shaly limestone is the crinoidal lime- limestone which appears to be made of various fossil stems with numerous branch pieces of limestone with [illegible] the limestone immediately beneath is a buff color and is full of radiar- tes, especially Spirifera & Sterophyllum and shells. Do some places there are layers are crinoidal, and large nodules and irregular masses of clert on it various levels. The total thick- ess of the various layers is about immediately over is very fine grained shale rock with fine close bedding, claimed to be shaly. Further in the other side where more granular this is less shaly and forms three layers. this strike. The fine bedding is still shown the other grades irregularly & shaly like 6 in. of less finely stratified buff calcareous rock is found beneath. The last three layers contain very few fossils. 13 in. of buff or blue argillaceous with many fine horizontal cra- filled with calcite. 12 in. argillaceous and a blue lime- stone with irregular calcite masses. 12 in. argillaceous limestone thin with fine regular cracks filled with calcite, also small calcite specks. 11 in. argillaceous limestone. 24 in. argillaceous laminations with calcite in irregular cracks or specks. The lower half of these argilla- cious layers consists of somewhat better done than the upper half. The irregular liney contact between the fossiliferous limestone and the closely stratified crinoidal rock below should be photographed. Further eastward, the upper feet of this series are seen to be in buff & argillaceous or poor shale 4'2 feet beneath a rest of a white rock which is a