Bay Area Geography and Geology, Figure 3

Palinspastic paleographic map for the greater San Francisco Bay Area at 15 Ma, restored using 1mm/yr contraction rate (see discussion in text). BB = Bay block; EBHB = East Bay Hills block; LB = Livermore block; ECRB = Eastern Coast Ranges block. Dashed line represents approximate position of sea level (Monterey Group shoreline). Heavy dotted line shows approximate latitude of Mendocine Triple Junction. Large arrows represent transport directions inferred from clast compositions and paleocurrent indicators. Small arrows show positions of 0-Ma piercing points (freeways and highways shown in Figure 1). Only San Andreas fault is active.

Source: Anna V. Buising and James P. Walker, 1995, Preliminary palinspastic paleogeographic reconstructions for the greater San Francisco Bay area, in E. M. Sangines, D. W. Andersen, and A. V. Buising, eds., Recent geologic studies in the San Francisco Bay area, Pacific Section SEPM, volume 76, p. 141-159.

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updated April 3, 2002