Author: Stephen F. Personius
Publisher:
Published: 1993
Total Pages: 362
ISBN-13:
DOWNLOAD EBOOK →Radiocarbon and thermoluminescence dating methods are used to determine the ages and probable origins of fluvial terraces.
Author: Geological Survey (U.S.)
Publisher:
Published: 1993
Total Pages: 288
ISBN-13:
DOWNLOAD EBOOK →The Bulletin reports some accomplishments of the U.S. Geological Survey in research on mineral resources in 1992.
Author: Gregory S. Gohn
Publisher:
Published: 1992
Total Pages: 176
ISBN-13:
DOWNLOAD EBOOK →A collection of short scientific papers that discuss research presented at the workshop held September 28-29, 1988, in Reston, Virginia.
Author: P. J. Cook
Publisher: Cambridge University Press
Published: 1986
Total Pages: 486
ISBN-13: 9780521333702
DOWNLOAD EBOOK →The origin of marine phosphorites, the principal raw material for phosphatic fertilizers, appears to be related mainly to marine biological productivity, often associated with upwelling currents during certain intervals of geological time. This book examines the environmental setting and resulting phosphorites which formed during the Miocene period, and investigations of modern oceanic environments where phosphorites are presently forming are also described.