TY  - BOOK
AU  - Kemp,James Furman
AU  - Marsters,Vernon Freeman
TI  - The trap dikes of the lake Champlain region
T2  - U.S. Geological survey. Bulletin
AV  - QE75 .B9 no. 107
PY  - 1893///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Geology
KW  - Champlain Valley
KW  - Dikes (Geology)
KW  - Igneous rocks
N1  - Literature of the diabases : p. 28-29; Bibliographical foot-notes
ER  -