Indian baskets of Central California: art, culture, and history: Native American basketry from San Francisco Bay and Monterey Bay north to Mendocino and east to the Sierras

2007 ◽  
Vol 44 (05) ◽  
pp. 44-2502-44-2502
Keyword(s):  
Native American ◽  
San Francisco ◽  
San Francisco Bay ◽  
Monterey Bay ◽  
Central California

scholarly journals Ancient DNA Analysis of Archaeological Specimens Extends Chinook Salmon’s Known Historic Range to San Francisco Bay and Its Southernmost Watershed

2020 ◽  
Author(s):  
Richard B. Lanman ◽  
Linda Hylkema ◽  
Cristie M. Boone ◽  
Brian Alleé ◽  
Roger O. Castillo ◽  
...  
Keyword(s):  
Native American ◽  
San Francisco ◽  
Ancient Dna ◽  
Chinook Salmon ◽  
Habitat Restoration ◽  
Dna Analysis ◽  
Oncorhynchus Tshawytscha ◽  
San Francisco Bay ◽  
Bay Area ◽  
Guadalupe River

Understanding a species’ historic range guides contemporary management and habitat restoration. Chinook salmon ( Oncorhynchus tshawytscha ) are an important commercial and recreational gamefish, but nine Chinook subspecies are federally threatened or endangered due to anthropomorphic impacts. Several San Francisco Bay Area streams and rivers currently host spawning Chinook populations, but government agencies consider these non-native hatchery strays. Using ichthyofaunal analysis of 17,288 fish specimens excavated from Native American middens at Mission Santa Clara circa 1781-1834 CE, 86 salmonid vertebrae were identified. Ancient DNA sequencing identified three of these as from Chinook salmon and the remainder from steelhead trout. These findings comprise the first physical evidence of the nativity of salmon to the Guadalupe River in San Jose, California, extending their historic range to include San Francisco Bay’s southernmost watershed.

scholarly journals Envisioning Colonial Landscapes Using Mission Registers, Radiocarbon, and Stable Isotopes: An Experimental Approach from San Francisco Bay

2015 ◽  
Vol 80 (3) ◽  
pp. 511-529 ◽  
Author(s):  
Tsim D. Schneider
Keyword(s):  
Native American ◽  
San Francisco ◽  
San Francisco Bay ◽  
Analytical Techniques ◽  
Historical Record ◽  
Geochemical Data ◽  
Field Methods ◽  
Cultural Traditions ◽  
Site Use ◽  
Archaeology Of Colonialism

The periodization used to distinguish sites and artifacts as "prehistoric" or "historic" translates to the selection of field methods and analytical techniques. This comes at the expense of developing new approaches to track continuities and adjustments in Native American site use, technologies, and other cultural traditions, such as mobility across an artificial divide between prehistory and history. To evaluate the mobility of Coast Miwok people in colonial San Francisco Bay, California, this article presents an experimental technique that compares radiocarbon and geochemical data from a Late period Phase 2(A.D. 1500-1800) shellmound (CA-MRN-114) to baptismal records from Spanish missions (A.D.l 776-1830s). Supported by eyewitness accounts of native fugitivism, furlough, and foraging at the missions, Coast Miwok baptisms before 1817 are at their lowest during traditional times of mussel harvests. After 1817, a different pattern is examined vis-d-vis the colonial landscapes taking shape in the region. Radiocarbon, geochemical, and documentary evidence supports the conclusion that seasonally oriented Coast Miwok mobility involving the collection of shellfish continued even during missionization. With further refinement, the proposed methodological framework holds promise for documenting patterns that often go unseen in the historical record and enhancing the archaeology of colonialism in North America.

Damping Values Derived from Surface-Source, Downhole-Receiver Measurements at 22 Sites in the San Francisco Bay Area of Central California and the San Fernando Valley of Southern California

2020 ◽  
Author(s):  
David M. Boore ◽  
James F. Gibbs ◽  
William B. Joyner
Keyword(s):  
San Francisco ◽  
Southern California ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Damping Ratio ◽  
Surface Source ◽  
Central California ◽  
Bay Area ◽  
San Fernando ◽  
San Fernando Valley

Abstract A method discussed in Gibbs, Boore, et al. (1994) was applied to surface-source, downhole-receiver recordings at 22 boreholes, in the San Francisco Bay area in central California and the San Fernando Valley of southern California, to determine the average damping ratio of shear waves over depth intervals ranging from about 10 m to as much as 245 m (at one site), with most maximum depths being between 35 and 90 m. The average damping values range from somewhat less than 1% to almost 8%, with little dependence on grain size for sites in sediments. Surprisingly, the average damping values for sites with average velocities greater than about 450  m/s, including, but not limited to rock sites, are generally larger than for sites with lower average velocities. The combined effect of the higher damping and shorter travel times through the rock columns, however, leads to an effective attenuation that is generally comparable or smaller than for soil sites.

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