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Asymmetric Brittle Deformation at the Papaku Fault, Hikurangi Subduction Margin, NZ, IODP Expedition 375

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (8)

Quantifying fault damage zones provides a window into stress distribution and rheology around faults. International Ocean Discovery Program (IODP) Exp......

A Pulse of Meteoric Subsurface Fluid Discharging Into the Chukchi Sea During the Early Holocene Thermal Maximum (EHTM)

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (8)

The response of Arctic Ocean biogeochemistry to subsurface flow driven by permafrost thaw is poorly understood. We present dissolved chloride and wate......

Space-Time Stress Variations on the Palu-Koro Fault Impacting the 2018 Mw 7.5 Palu Earthquake and Its Seismic Hazards

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (5)

In this study, we calculated the Coulomb stress change before and after the 2018 Palu earthquake (Mw 7.5) induced by historical large earthquakes on a......

Models of Maghematization: Observational Evidence in Support of a Magnetic Unstable Zone

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (3)

Recent micromagnetic simulations predict that particles have an abnormal region of low magnetic stability for grain sizes near the domain state transi......

Thallium Isotope Fractionation During Magma Degassing: Evidence From Experiments and Kamchatka Arc Lavas

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (5)

Thallium (Tl) isotope ratios are an emerging tool that can be used to trace crustal recycling processes in arc lavas and ocean island basalts (OIBs). ......

Timescales of Partial Melting and Melt Crystallization in the Eastern Himalayan Orogen: Insights From Zircon Petrochronology

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (4)

Revealing the timescales of metamorphic and anatectic processes is central to our understanding of tectonic evolution of collisional orogens. High-tem......

Paleogene Sedimentary Records of the Paleo-Jinshajiang (Upper Yangtze) in the Jianchuan Basin, Yunnan, SW China

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (6)

Cenozoic surface uplift of Tibetan Plateau has driven the birth and reorganization of large river systems in Asia. The development of the Yangtze Rive......

Prototethyan Accretionary Orogenesis Along the East Gondwana Periphery: New Insights From the Early Paleozoic Igneous and Sedimentary Rocks in the Sibumasu

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (5)

New geochronological and geochemical data document a new and widely distributed succession of igneous and sedimentary rocks within the Sibumasu that e......

Tectonic Controls on Block Rotation and Sheeted Sill Emplacement in the Xigaze Ophiolite (Tibet): The Construction Mode of Slow-Spreading and Ultraslow-Spreading Oceanic Crusts

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (3)

The internal structure of oceanic crusts is not well understood due to the limitation of deep drilling. However, that of ophiolites, i.e., on-land anc......

Massive Deposition of Carbonate Nodules in the Hyperarid Northwest Qaidam Basin of the Northern Tibetan Plateau

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (4)

Concretionary nodule formation is a subaerial process common to both Earth and Mars. The resulting nodules contain information about particular paleoc......

Disentangling Combined Effects of Sediment Sorting, Provenance, and Chemical Weathering From a Pliocene-Pleistocene Sedimentary Core (CSDP-1) in the South Yellow Sea

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (5)

The South Yellow Sea is an important sink for sediments delivered by the Yellow and Yangtze rivers in East Asia. We conducted a high-resolution geoche......

Anomalous Subduction Initiation: Young Under Old Oceanic Lithosphere

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (6)

When subduction initiates along a transform fault, it is often interpreted that the older and therefore denser oceanic lithosphere should evolve into ......

Comment on "Pressure-to-Depth Conversion Models for Metamorphic Rocks: Derivation and Applications" by Bauville and Yamato

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (7)

Bauville and Yamato (2021, ) (G-cubed) propose model-based methods to convert metamorphic pressures to depths based on the claim that pressure data fr......

The Origin of Late Cenozoic Magmatism in the South China Sea and Southeast Asia

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (8)

Basaltic lavas sample recycled crustal materials from their mantle source. Constraining the location and residence time of these recycled materials in......

Volatile Element Evidence of Local MORB Mantle Heterogeneity Beneath the Southwest Indian Ridge, 48 degrees-51 degrees E

期刊: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021; 22 (7)

The mantle source beneath the Southwest Indian Ridge (SWIR) reflects a complex history of contamination. Magmatic volatile contents are vital tracers ......

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