Word: lava
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Dates: during 1890-1899
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Geological Conference. Papers: On Some Neocene Lava-flows of the Sierra Nevada, California. Dr. F. L. Ransome. Geological Laboratory, Room...
Geological Conference. Papers: On Some Neocene Lava-flows of the Sierra Nevada, California. Dr. F. L. Ransome. Geological Laboratory, Room...
April 10.- Excursion to Meriden, Conn., conducted by Professor W. M. Davis. Special features: The relations of the Triassic Sandstones and Lava Beds. (Monadnock Mountain may be substituted for this excursion...
...noon the contact of the lava bed on the sandstone near Greenfield will be seen; here the lower surface of the lava is seen in cross section to be broken up into coarse fragments, now united by a sandy cement which is continuous with the sandstone below, and passes into a volcanic cement above, showing "where the slaggy surface of the flow was under rolled on a muddy bottom and the mud was forced up into the fissures," meeting in the cracks the still liquid lava from above...
...devoted to the intricate structure of the famous Gay Head cliffs, also to the great terminal moraine and to the encroachment of the sea upon the island. After leaving Martha's Vineyard the party will go to the last section of its work in the district of old lava beds and triassic sandstones about Meriden in the central part of Connecticutt. The party will break up on August 13. Professor Shaler will take a limited share in the work in Rhode Island and Martha's Vineyard...