Correlation, ages, and uplift rates of Quaternary marine terraces: South-central coastal California

Coastal tectonics on the eastern margin of the Pacific Rim: late Quaternary sea-level history and uplift rates, Channel Islands National Park, California, USA

“…Paleo-sea levels, relative to present, used for uplift rate calculations are þ6 m (~120 ka), À11 m (~80 ka), and À62 m (~49 ka), derived from data in Muhs et al (2012). Abbreviations and sources of data, south to north: CP, Cabo Pulmo (Muhs et al, 2002a); LP, La Paz (Sirkin et al, 1990); BH, Bahía Magdalena (Omura et al, 1979); IC, Isla Coronados and PC, Punta Chivato (Johnson et al, 2007; see also Table 2); MU, Mulege (Ashby et al, 1987); BT, Bahía de Tortugas (Emerson et al, 1981); PB, Punta Banda (Rockwell et al, 1989;Muhs et al, 2002a); PL, Point Loma (Kern, 1977;Muhs et al, 2002a); SCI, San Clemente Island (Muhs et al, 2002a; NB, Newport Bay (Grant et al, 1999); SNI, San Nicolas Island ; PV, Palos Verdes Hills (Muhs et al, 2006); NCI, Northern Channel Islands (this study); V, Ventura Kennedy et al, 1982;Wehmiller, 1982); IV, Isla Vista (Gurrola et al, 2014; see also Table 2); SB, Shell Beach (Stein et al, 1991;Hanson et al, 1994); PSL, Point San Luis (Hanson et al, 1994;Muhs et al, 1994); C, Cayucos (Stein et al, 1991;Muhs et al, 2002a); AN, Año Nuevo (Muhs et al, 2006); PA, Point Arena (Muhs et al, 2006); PD, Point Delgada (McLaughlin et al, 1983a(McLaughlin et al, , 1983bMerritts and Bull, 1989); CC, Crescent City (Kennedy et al, 1982;Polenz and Kelsey, 1999); CB, Cape Blanco (Kelsey, 1990;Muhs et al, 1990); B, Bandon (McInelly and Kelsey, 1990;…”

Late Quaternary landscape development along the Rancho Marino coastal range front (south‐central Pacific Coast Ranges, California, USA)

“…The late Quaternary landform record has received particular attention within the literature, where spatial and temporal patterns of the marine terrace record and its integration with global late Quaternary sea-level curves have been used (1) for seismotectonic purposes, to quantify local and regional uplift rates (Hanson et al, , 1994Muhs et al, 1992;Orme, 1998) and (2) for climatic reasons, to quantify patterns and durations of late Quaternary palaeoclimate and eustatic changes (Muhs, 1992;Muhs et al, 2002). Detailed stratigraphic and absolute age datasets are limited to three areas within the central-southern Pacific Coast Ranges: along the flanks of the San Luis Range, and at Cayucos and San Simeon (Fig.…”

“…1). The San Luis Range and San Simeon areas contain flights of marine terraces spanning the late Quaternary that cross active fault structures (Hanson et al, , 1994Lettis and Hanson, 1992). In contrast, Cayucos is tectonically quiescent and is dominated by a well-developed last interglacial marine terrace (Muhs et al, 2002).…”

“…A commonly cited problem is that the marine terraces are destroyed by erosion or that their fossil sea cliff (shoreline angle/strandline), that is typically used as a palaeosea-level datum, is buried by aeolian, alluvial fan or slope colluvial deposits (e.g. Weber, 1983;Hanson et al, 1994).…”

Initial source and site characterization studies for the U.C. Santa Barbara campus

“…The Hosgri fault zone approaches to within less than 100 km of the study area. Based upon a fault length of 60 km, and preferred Holocene slip rate and displacement per event of 3+2 mm/yr and l-2 m, respectively (PG&E, 1988;Hanson et al, 1994;Hall et al, 1994) Bay at least 75 km to the south-southeast (Petersen and Wesnousky, 1994). It is mapped for about 15 km on the Palos Verdes Peninsular, and approaches within about 80 km of UCSB.…”