Stable isotope systematics in mesozoic granites of Central and Northern California and Southwestern Oregon

Masi, Umberto; O’Neil, James R.; Kistler, Ronald W.

doi:10.1007/bf00373691

Cited by 79 publications

(43 citation statements)

References 19 publications

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“…These patterns mirror results produced by researchers in biology and geology studying Sr dissolved in water, incorporated into fishbone, and in geological formations (Barnett-Johnson et al, 2008;Cole and Basu, 1995;DePaolo, 1981;Hobbs et al, 2010;Ingram and Weber, 1999;Kistler and Peterman, 1973;Masi et al, 1981;Nelson, 1995). Fig.…”

Section: Resultssupporting

confidence: 74%

Tracing the mobility of individuals using stable isotope signatures in biological tissues: “locals” and “non-locals” in an ancient case of violent death from Central California

Eerkens

Barfod

Jorgenson

et al. 2014

Journal of Archaeological Science

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a b s t r a c tStable isotope analyses of biological tissues that grow during different phases of life can be used to trace the geographic location of individuals during different windows of time. We apply this principle and reexamine three prehistoric skeletons excavated in 1964 from archaeological site CA-YOL-117 in Central California. Field evidence suggests they were killed as part of a single violent event. We report new radiocarbon dates and Strontium, Oxygen, Carbon, and Nitrogen isotopic data from first molars, third molars, and bone to examine circumstances surrounding their death. Data suggest two of the three individuals were born, and all three lived their teenage years, near the site they were buried in. However, as adults they lived elsewhere, likely to the north along the Sacramento River. Around AD 1450, upon returning to the territory of their childhood years, they were killed and placed in a mass grave. The data invite a more nuanced interpretation of how we view "local" and "non-local" individuals archaeologically. Overall, the analysis provides an interesting glimpse into the nature of warfare and violence among pre-contact hunteregatherers of Northern California.

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Section: Resultssupporting

confidence: 74%

Tracing the mobility of individuals using stable isotope signatures in biological tissues: “locals” and “non-locals” in an ancient case of violent death from Central California

Eerkens

Barfod

Jorgenson

et al. 2014

Journal of Archaeological Science

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“…In evaluating for possible crustal contamination here, we focus on δ 18 O, Rb/Sr, and 87 Sr/ 86 Sr (Sr i ) ratios, noting that all three tracer measures are especially sensitive to detect upper crustal contamination. Available δ 18 O and Sr i for the Fine Gold Intrusive Suite, surrounding wall rocks, mafi c complexes in the western foothills, and the Tuolumne and Shaver Intrusive Suites (Masi et al, 1981;Clemens-Knott, 1992;Kistler and Fleck, 1994;Truschel, 1996) show variable distinct arrays in O-Sr space for the western and central domain samples, versus those in the eastern domain (Fig. 9B).…”

Section: Wall-rock Contaminationmentioning

confidence: 99%

“…Prior geochemical study of the Fine Gold Intrusive Suite accompanying U.S. Geological Survey mapping of 15′ quadrangles was summarized by Bateman (1992), and including some prior iso topic analyses of strontium (Kistler and Peterman, 1973;Kistler, 1990;Bateman et al, 1991) and oxygen isotopes (Masi et al, 1981;Lackey et al, 2006Lackey et al, , 2008. Truschel (1996) (Kistler and Peterman, 1973;Kistler, 1990;Bateman et al, 1991).…”

Section: Previous Work On Magma Petrogenesismentioning

confidence: 99%

“…Nd and Pb isotope ratios tracked with Sr i , suggesting a mixture of Proterozoic continental crust and a younger (Paleozoic), low Sr i (0.704), high εNd (+8) reservoir. The unusually high δ 18 O of the Fine Gold Intrusive Suite (Masi et al, 1981;Lackey et al, 2008), but correspondingly low Sr i , led to the proposal (Lackey et al, 2008) that this high δ 18 O reservoir is a mixture of mantle-derived magmas and altered Paleozoic to Mesozoic ocean crust or equivalent age volcanogenic sedimentary rocks.…”

Section: Previous Work On Magma Petrogenesismentioning

confidence: 99%

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et al. 2012

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The Fine Gold Intrusive Suite is one of the largest (>2000 km 2 ) and oldest intrusive complexes in the Sierra Nevada batholith (California, USA), and therefore contains a wealth of information about nascent magmatic processes in a convergent margin arc. Because the suite intrudes both accreted oceanic and/or island-arc terranes and continental crust, it provides perspective on how convergent margin magmatism recycles existing crust versus reworking of fringing island arcs into continental crust. Such insight informs our understanding of how continental crust formation may have operated in the Phanerozoic as compared to earlier in Earth history.New zircon U-Pb geochronology shows that the largely tonalitic suite was emplaced over ~19 m.y. (124-105 Ma), in three pulses that young from west to east. The most recent domain is nested within the previous ones, such that lobes of magma protruding from the main bodies of the Bass Lake Tonalite (the primary member of the Fine Gold Intrusive Suite) are older than interior areas. Zircon δ 18 O (6.1‰-8.0‰) and εHf (-4.7 + 6.4) show temporal trends indicating that early magmas were source mixtures of mantle with as much as 45% Paleozoic to Mesozoic oceanic and/or arc rocks, whereas later magmas contain greater inputs (to 50%) of Proterozoic North American crust. Older domains in the suite were likely generated from isolated sources, including initial high Sr/Y (to ~90), high Na 2 O magmas consistent with garnetbearing sources inferred to be relatively deep.Higher 87 Sr/ 86 Sr, lower εHf, and higher Rb/Sr values in younger plutons show a source that tapped greater proportions of North American crust and was presumably more organized and larger, given its more homogeneous isotopic and trace element traits. Our fi ndings also show that expression of the 87 Sr/ 86 Sr = 0.706 isopleth in arc magmas may be delayed until magma sources are suffi ciently vigorous to melt and incorporate aged continental crust. Therefore, Sr i values of older stitching plutons may better record the position of discrete terrane boundaries, whereas younger plutons will record the magmatically average position of terrane boundaries. Although the Fine Gold Intrusive Suite is comparable to the Late Cretaceous voluminous intrusive suite of eastern Sierran suites in terms of duration and age zoning of magmatism, the infl uence of preexisting basement compositions and differing degrees of organization of the magma sources with age is more pronounced. In addition, the fi ndings show that recycling of fringing arc terranes into continental crust is relatively rapid and that estimates of the growth of Phanerozoic continental crust from such reprocessing should be revised upward.

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“…178 δ 18 O of the igneous rocks is typically in the range +7 to +10 (MASI et al, 1981), 218 limestones are ca. +20 to +30, and meta-sandstones are in the range +12 to +20 ( (Taylor, 1974).…”

mentioning

confidence: 99%

Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: Example from Long Valley, CA, USA

Brown

Kennedy

DePaolo

et al. 2013

Geochimica et Cosmochimica Acta

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Stable isotope systematics in mesozoic granites of Central and Northern California and Southwestern Oregon

Cited by 79 publications

References 19 publications

Tracing the mobility of individuals using stable isotope signatures in biological tissues: “locals” and “non-locals” in an ancient case of violent death from Central California

Tracing the mobility of individuals using stable isotope signatures in biological tissues: “locals” and “non-locals” in an ancient case of violent death from Central California

Untitled

Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: Example from Long Valley, CA, USA

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