AbstractThe thickness of the cratonic lithospheric mantle (CLM) influences the composition of primary mantle melts, the formation and distribution of ore deposits, and the stability of continents. However, it remains debated whether the thickness of th…
AbstractDensity-driven flow caused by fluid density contrasts in saturated porous rocks plays a critical role in many geological applications, including mineral exploration, hydrogen or carbon storage, and the migration of brines or hydrocarbons. Yet, …
AbstractVolatile recycling and storage in the mantle transition zone (MTZ) is important for the refertilization of the upper mantle and is associated with the generation of high-µ (HIMU, where µ is 238U/204Pb) mantle. One way to probe the MTZ and the p…
AbstractWe use phase-equilibrium and trace-element modeling to address the effects of magmatic H2O, oxygen fugacity (fO2), and differentiation depth of mantle-derived magmas on the generation of porphyry copper deposit (PCD)–forming magmas. We explore …
AbstractA regional network of dextral strike-slip faults along the northwestern margin of North America separates crustal fragments of early Eocene oceanic plateau crust by ~1600 km. In this study, we test the hypothesis that both the Siletzia terrane …
AbstractMelt inclusions are used to study the origin and evolution of magmas. The extent to which they represent equilibrium melt compositions, however, critically hinges on the ratio of crystal growth rate to diffusion rate in melts. If the rate of cr…
AbstractOxygenic photosynthesis played an essential role in the accumulation of free oxygen (O2) at Earth’s surface, but questions persist regarding its evolutionary timeline. Manganese (Mn)-rich sedimentary rocks from the Mesoarchean Pongola Supergrou…
AbstractDeformation of trench-fill sediments at the central Japan Trench axis confirms that coseismic slip during the 2011 CE Mw 9.1 Tōhoku-oki earthquake extended to the shallowest part of the megathrust fault, contributing to the unexpectedly large t…
AbstractThe cause of unexpectedly shallow seismic slip during the 2004 Sumatra-Andaman earthquake, which resulted in a devastating tsunami, is still under debate. One hypothesis is that diagenetic strengthening of décollement-forming input sediments pr…
AbstractThe northern Africa region faces significant seismic and tsunami hazards, driven by the ongoing convergence between the Nubian and Eurasian plates. Using radar interferometry (interferometric synthetic aperture radar, InSAR) analysis, we provid…