Search Results - "Mathur, Ryan"

Complementary Use of Lead Isotopes, Tin Isotopes, and Trace Elements to Infer the Sources of Tin in Bronzes from Southern Africa, ca. 1200–1800 CE.

Authors: Stephens, Jay Mathur, Ryan Powell, Wayne et al.

Source: Journal of Archaeological Method & Theory. Mar2026, Vol. 33 Issue 1, p1-60. 60p.

Coupled Sn- and Cu-isotope signatures decipher mechanisms of Sn-Cu ore formation.

Authors: Zhao, Fengshang Liu, Peng Mathur, Ryan et al.

Source: Geological Society of America Bulletin; Jan/Feb2026, Vol. 138 Issue 1/2, p64-72, 9p

Geochemical Overprinting and Secondary Placer Crystal Formation in the La Cholla District, Quartzsite, Arizona, USA: Evidence from Copper Isotopes, Morphology, and Trace Elements.

Authors: Melchiorre, Erik B. Mathur, Ryan Kamenov, George et al.

Source: Minerals (2075-163X). Nov2023, Vol. 13 Issue 11, p1444. 22p.

Coupled antimony and sulfur isotopic composition of stibnite as a window to the origin of Sb mineralization in epithermal systems (examples from the Kremnica and Zlatá Baňa deposits, Slovakia).

Authors: Koděra, Peter Mathur, Ryan Zhai, Degao et al.

Source: Mineralium Deposita. Aug2025, Vol. 60 Issue 6, p1141-1157. 17p.

Subject Terms: *Earth sciences, *Volcanic fields, *Prospecting, *Rayleigh model, *Geochemistry

Reviews & Products: Bible. Genesis

Fluid-mineral titanium isotope fractionation: Computational and empirical results with implications for mineral deposits.

Authors: Emproto, Christopher Mathur, Ryan Sun, Mingguang et al.

Source: Geochimica et Cosmochimica Acta. Feb2025, Vol. 390, p251-263. 13p.

Subjects: Oxide minerals, Hydrothermal deposits, Isotopic fractionation, Ore deposits, Isotope exchange reactions

Copper isotopic evidence of microbial gold fixation in the Mesoarchean Witwatersrand Basin.

Authors: Mathur, Ryan Godfrey, Linda Frimmel, Hartwig E. et al.

Source: Geochimica et Cosmochimica Acta. Jan2025, Vol. 388, p114-126. 13p.

Subjects: Great Oxidation Event, Copper isotopes, Copper, Sedimentary rocks, Hydrothermal alteration

Bio-mediated enhancement of supergene copper mineralization: Evidence from Cu isotope geochemistry.

Authors: Rey-Samper, J. Javier Mathur, Ryan Tornos, Fernando

Source: Geochimica et Cosmochimica Acta. Jan2025, Vol. 388, p283-293. 11p.

Subjects: Copper isotopes, Copper, Cementation (Petrology), Cementation (Metallurgy), Isotopic fractionation

Geographic Terms: Spain

A Chemical Separation and Measuring Technique for Titanium Isotopes for Titanium Ores and Iron-Rich Minerals.

Authors: Mathur, Ryan Emproto, Christopher Simon, Adam C. et al.

Source: Minerals (2075-163X). May2022, Vol. 12 Issue 5, p644-644. 9p.

Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems.

Authors: Mathur, Ryan Powell, Wayne Yao, Junming et al.

Source: Geosciences (2076-3263). Jan2025, Vol. 15 Issue 1, p28. 30p.

Vapor-phases as Cu transport agents for the shear-zone-hosted mineralization system: A perspective from H-O-S-Cu isotopes.

Authors: Zhao, Yun Xue, Chunji Liu, Sheng-Ao et al.

Source: American Mineralogist; Apr2024, Vol. 109 Issue 4, p667-681, 15p

Equilibrium Sn isotope fractionation between aqueous Sn and Sn-bearing minerals: Constrained by first-principles calculations.

Authors: Sun, Mingguang Mathur, Ryan Gao, Caihong et al.

Source: American Mineralogist; Feb2024, Vol. 109 Issue 2, p265-273, 9p

Finding Fort Roberdeau.

Authors: Mathur, Ryan Burns, Jonathan Nelson, Glenn et al.

Source: Historical Archaeology; Dec2023, Vol. 57 Issue 4, p1319-1332, 14p

Exploration Applications of Copper Isotopes in the Supergene Environment: A Case Study of the Bayugo Porphyry Copper-Gold Deposit, Southern Philippines.

Authors: BRAXTON, DAVID MATHUR, RYAN

Source: Economic Geology & the Bulletin of the Society of Economic Geologists; December 2011, Vol. 106 Issue 8, p1447-1463, 17p

Patterns in the Copper Isotope Composition of Minerals in Porphyry Copper Deposits in Southwestern United States.

Authors: Mathur, Ryan Dendas, Molly Titley, Spencer

Source: Economic Geology & the Bulletin of the Society of Economic Geologists; December 2010, Vol. 105 Issue 8, p1457-1467, 11p

Boiling-induced extreme Cu isotope fractionation in sulfide minerals forming by active hydrothermal diffusers at the Aegean Kolumbo volcano: Evidence from in situ isotope analysis.

Authors: Zegkinoglou, Nikolaos N. Mathur, Ryan Kilias, Stephanos P. et al.

Source: Geology. Nov2023, Vol. 51 Issue 11, p1072-1076. 5p.

Scheelite U-Pb geochronology and trace element geochemistry fingerprint W mineralization in the giant Zhuxi W deposit, South China.

Authors: Zhao, Qingqing Zhai, Degao Hong, Jingxin et al.

Source: American Mineralogist; Sep2023, Vol. 108 Issue 9, p1781-1793, 13p

Age of Mineralization of the Candelaria Fe Oxide Cu-Au Deposit and the Origin of the Chilean Iron Belt, Based on Re-Os Isotopes—A Discussion.

Authors: Naslund, H. Richard Lledó, Haroldo Mathur, Ryan

Source: Economic Geology & the Bulletin of the Society of Economic Geologists; August 2003, Vol. 98 Issue 5, p1047-1052, 6p

Age of mineralization of the Candelaria Fe oxide Cu-Au deposit and the origin of the Chilean iron belt, based on Re-Os isotopes.

Authors: Mathur, Ryan Marschik, Robert Ruiz, Joaquin

Source: Economic Geology & the Bulletin of the Society of Economic Geologists; January/February 2002, Vol. 97 Issue 1, p59-71, 13p

Preparation and Measurement of Cassiterite for Sn Isotope Analysis.

Authors: Mathur, Ryan Powell, Wayne Mason, Andrea et al.

Source: Geostandards & Geoanalytical Research. Dec2017, Vol. 41 Issue 4, p701-707. 7p.

Copper Isotope Constraints on the Genesis of the Keweenaw Peninsula Native Copper District, Michigan, USA.

Authors: Bornhorst, Theodore J. Mathur, Ryan

Source: Minerals (2075-163X). Oct2017, Vol. 7 Issue 10, p185. 20p.