thumbnail

Controls on timing and amount of right-lateral offset on the East Bay fault system, San Francisco Bay region, California

Geological Society of America Bulletin

By:
, , , , and
DOI: 10.1130/0016-7606(2002)114<1471:COTAAO>2.0.CO;2

Links

Abstract

The distribution of offset, correlated rock units, relative position of northward- younging volcanic rocks, and distribution of units not offset together reveal the history of strike-slip deformation along the East Bay fault system. The system accumulated 175 km of right-lateral offset since 12 Ma, but of this amount, only ???25 km was accumulated between 12 and 10 Ma and only ???75 km between 12 and 6 Ma. The westernmost Hayward fault zone is responsible for more than half (100 km) of the total, and it, too, has undergone more offset (60 km) after 6 Ma than before. The activity on any single fault zone in the system has been sporadic, and alternating periods of activity and inactivity have been recorded on at least some of the fault zones.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Controls on timing and amount of right-lateral offset on the East Bay fault system, San Francisco Bay region, California
Series title:
Geological Society of America Bulletin
DOI:
10.1130/0016-7606(2002)114<1471:COTAAO>2.0.CO;2
Volume
114
Issue:
12
Year Published:
2002
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geological Society of America Bulletin
First page:
1471
Last page:
1479