Results 121 to 130 of about 3,699 (198)

Multi‐Stage Evolution of Subducted Oceanic Mantle: The Marlborough Ultramafic Suite (New England Orogen, Australia)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Oceanic lithosphere is continuously destroyed by subduction, challenging our ability to develop tectonic reconstructions. One way to tackle this problem is to examine relics of once‐consumed oceanic domains preserved along convergent margins. In the New England Orogen (eastern Australia), disrupted exposures of ultramafic rocks loosely define ...
J. A. Pasco, G. Rosenbaum, T. Ubide, L. A. Milan, C. Spier   +4 more
wiley   +1 more source

Authigenic Be Isotopes Record Circumpolar Deep Water Inflow and Subglacial Outflow in Antarctic Shelf Sediments

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract The Antarctic Ice Sheet (AIS) has recently undergone accelerating mass loss driven primarily by basal melting associated with Circumpolar Deep Water (CDW) inflow onto the continental shelf. However, temporal variability in CDW inflow and its role in mass loss from the AIS over longer timescales remain uncertain because the duration of the ...
Yuri Yamazaki, Yusuke Suganuma, Takuya Itaki, Atsuko Amano, Takeshige Ishiwa, Daisuke Hirano, Motohiro Hirabayashi, Hiroyuki Matsuzaki, Takeyasu Yamagata, Yuki Tokuda, Takeshi Sugimura, Takeshi Tamura, Kazuya Kusahara, Jun'ichi Okuno, Kosei E. Yamaguchi   +14 more
wiley   +1 more source

Links between the Archean hydrosphere and Earth's interior. [PDF]

Nat Commun
Long ZY, Moynier F, Puchtel IS, Li Y, Luu TH, Deng J, Qiu KF.   +6 more
europepmc   +1 more source

Re‐Evaluating the Thermogenic Decarbonation During Large Igneous Provinces Emplacement Using Temperature‐Dependent Thermal Properties

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Large Igneous Provinces emplacement drives mass extinctions through rapid carbon release, but the relative contributions of magmatic degassing versus thermogenic decarbonation remain debated. Here, we incorporate temperature‐dependent thermal parameters into models of contact metamorphism around intruding sills.
Yan Wang, Jianfeng Yang, Linpei Deng, Liang Zhao   +3 more
wiley   +1 more source

Potential survivable niches for microbial life on the lunar south pole. [PDF]

Sci Adv
Saxena P, Bertone S, Graham HV, Curran NM, Regberg AB, Needham A, Puge DEB, Petro NE.   +7 more
europepmc   +1 more source

Past the First Date: Ensemble Concordant–Discordant Comparison for Zircon Pb‐Loss Analysis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Zircon uranium–lead (U–Pb) geochronology is a cornerstone of Earth science for resolving the timing of deep‐time processes, yet the U–Pb system does not always behave as a closed chronometer. Selective loss of radiogenic Pb during fluid alteration or thermal disturbance can shift isotopic ages and generate discordant analyses. Some zircon data
Lucy M. Mathieson, Christopher L. Kirkland   +1 more
wiley   +1 more source

Catalytic non-energetic formation of diverse peptides on cosmic dust under extraterrestrial conditions. [PDF]

Commun Chem
Krasnokutski SA, Kruczkiewicz F, Bourseau C, Remaury Q, Geffroy C, Ueberschaar N, Poinot P, Chuang KJ.   +7 more
europepmc   +1 more source

Insights Into Microscale Biomineralization in Deep‐Sea Callogorgia Coral via Halogen Banding

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Halogen incorporation into coral carbonate skeletons serves as a valuable proxy for reconstructing paleoenvironments. However, the underlying mechanisms remain poorly understood. This study employed femtosecond laser ablation‐inductively coupled plasma time‐of‐flight mass spectrometry (fs‐LA‐ICP‐TOFMS) to perform multi‐elemental (I, Br, P, Ca,
Xuna Yin, Miaohong He, Xiaotong Peng, Kaiwen Ta, Hengchao Xu, Zhisen Liang, Xuefei Chen, Wenfeng Deng, Gangjian Wei   +8 more
wiley   +1 more source

Jupiter's brightest auroras are powered by locally generated Alfvén waves. [PDF]

Sci Adv
Sulaiman AH, Mauk BH, Lysak RL, Kruegler NS, Sarkango Y, Szalay JR, Bolton SJ, Clark G, Damiano PA, Eshetu WW, Elliott SS, Kurth WS, Skinner EA.   +12 more
europepmc   +1 more source

Depositional History of the Namibian Mud Belt Reveals Late Holocene Weakening of the Benguela Coastal Current

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract We investigate late Holocene changes in the northern Benguela Upwelling System using a multi‐proxy approach on shallow shelf deposits from the Namibian mud belt. Three sediment cores characterized by organic carbon‐rich, anoxic, and partly gas‐bearing sediments were retrieved along a sampling transect at 23°S in August 2019.
Michael Kossack, Chloe H. Anderson, Nikolas Römer‐Stange, Jürgen Titschack, Florian Scholz, Matthias Zabel   +5 more
wiley   +1 more source