Mineralogy of Hemipelagic Basin Sediments, California Continental Borderland

reportActive / Technical Report | Accession Number: AD0721395 | Open PDF

Abstract:

Minerals in Holocene and late Pleistocene basin sediments of the northern California Continental Borderland are derived from local sources, and in minor amounts from wind- and current-borne sediment. Source, sea level fluctuations, differential settling, and sedimentation by floods control the distribution of the mineralogy. River-sediment mineralogy can be divided into northern sedimentary, central igneous-metamorphic, and southern batholithic suites. Analysis of cores reveal mineralogic variations that are largely controlled by sea-level fluctuations. Numerous well-sorted gray silt layers in Santa Barbara Basin appear to be flood-deposits that formed after unusually heavy storms, such as occurred in 1969.

Author(s):
Fleischer, Peter
Author Organization(s):
UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF GEOLOGICAL SCIENCES
Descriptive Note:
Technical rept.
Pagination:
0209

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USC-GEOLOGY-70-7
Contract/Grant Number(s):
N00014-67-A-0269-0009
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.1_Deployment and Distribution; JCA_JCA_4.1.2_Sustain the Force; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned
Modernization Areas:
Microelectronics
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*CALIFORNIA, *MARINE GEOLOGY, *MINERALS, CALCIUM COMPOUNDS, CARBONATES, CLAY MINERALS, CONTINENTAL SHELVES, CORRELATION TECHNIQUES, GEOCHEMISTRY, IDENTIFICATION, OCEAN BOTTOM SAMPLING, PARTICLE SIZE, POTASSIUM COMPOUNDS, QUANTITATIVE ANALYSIS, RIVERS, SAND, SEDIMENTATION, SILT, X RAY DIFFRACTION
Field(s)/Group(s):
Physical and Dynamic Oceanography, Geology, Geochemistry and Mineralogy
Keyword(s):
GEOLOGICAL SEDIMENTATION
Report Date:
1970 Nov 01