Connections between subducted sediment, pore-fluid pressure, and earthquake behavior along the Alaska megathrust
A 4463 Ma apparent zircon age from the Jack Hills (Western Australia) resulting from ancient Pb mobilization
Cordilleran ice-sheet growth fueled primary productivity in the Gulf of Alaska, northeast Pacific Ocean
Genesis of the world’s largest rare earth element deposit, Bayan Obo, China: Protracted mineralization evolution over ∼1 b.y.
Congruent Permian-Triassic δ238U records at Panthalassic and Tethyan sites: Confirmation of global-oceanic anoxia and validation of the U-isotope paleoredox proxy
Stromatolites below the photic zone in the northern Arabian Sea formed by calcifying chemotrophic microbial mats
Centennial-scale trends in the Southern Annular Mode revealed by hemisphere-wide fire and hydroclimatic trends over the past 2400 years
Seamount chain–subduction zone interactions: Implications for accretionary and erosive subduction zone behavior
New insights on sediment magnetic remanence acquisition point out complexity of magnetic mineral diagenesis
COVER: An exceptionally well-preserved orthopyroxene megacryst containing garnet lamellae, juxtaposed against granular harzburgite, from the Bultfontein pans, Kaapvaal craton. Garnet lamellae are homogeneously distributed within the host orthopyroxene and occur at an orientation that is unrelated to orthopyroxene cleavage, strongly indicating that they formed by exsolution. See “An exsolution origin for Archean mantle garnet” by Tomlinson et al., p. 123–126 in the February 2018 issue of Geology.
Image by: Mags Duncan
Cover design by: Heather L. Sutphin
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