Results 201 to 210 of about 127,546 (339)

Effect of bleaching materials on optical properties and surface roughness of discolored dental ceramics. [PDF]

Sci Rep
Kaheel N, Bchara J, Jamous I.
europepmc   +1 more source

Microstructural Controls on Geothermal Reservoir Host Rock Responses to Elevated Pressures and Temperatures

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Rock microstructure controls geothermal fluid flow within reservoirs hosted in active volcanic environments and as such it is necessary to constrain the microstructural evolution of rocks at elevated pressure and temperature conditions. Despite Andean geothermal systems hosting numerous high enthalpy geothermal plays, there remains a paucity ...
V. Mura, J. Browning, G. Arancibia, D. Healy, N. Farrell, N. Bigaroni, C. Pineda, D. Morata, J. Mecklenburgh   +8 more
wiley   +1 more source

Atmospheric systems drive spatiotemporal divergence of dust and moisture changes across Asia over the past 130,000 years. [PDF]

Sci Adv
Li G, Yang H, Zhang X, Li J, Du P, Han D, Zhou R, Song Y, Fitzsimmons KE, Dave AK, Yi S, Kang S, Stevens T, Buylaert JP, Lai Z, Wang Y, Lai J, Yan Z, Yang J, Wang X, Qin L, Gou S, Chen C, E C, Zhao Q, Wang L, Lu T, Deng Y, Shu L, Yu L, Liu X, Ling Z, Chang Q, Wei H, Xie H, Chen F.   +35 more
europepmc   +1 more source

High Geomagnetic Reversal Frequency During the Middle to Late Ediacaran (∼570 Ma) Constrained by Integrated Magneto‐ and Cyclostratigraphy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The Ediacaran–Cambrian (∼635–539 Ma) geomagnetic field is characterized by unusually high reversal rates and markedly weakened field strength. Estimates of these reversal frequencies can reveal key aspects of deep Earth dynamics and their potential influence on surface environments and early complex life.
J. W. L. Afonso, R. M. Rocha, D. R. Franco, N. B. Dos Santos, C. G. Leandro, P. Franceschinis, A. E. Rapalini, M. J. Arrouy, L. E. Gómez‐Peral, D. G. Poiré, S. Caetano‐Filho, H. D. Brito, R. I. F. Trindade   +12 more
wiley   +1 more source

Rare Earth Element Distribution and Paleoenvironmental Implications of Harmanlı (Gölbaşı, Adıyaman) Coals, SE Anatolia. [PDF]

ACS Omega
Ünal-Kartal N, Altunsoy M, Karagöz M.
europepmc   +1 more source

Amapari Marker Band Metal‐Enrichments: Potential Mechanisms and Implications for Surface and Subsurface Water and Weathering in Gale Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract NASA's Curiosity rover is exploring a 5 km tall sedimentary mound that is hypothesized to record the transition from a warm and wet (phyllosilicate‐rich) to a cold and drier (sulfate‐rich) Mars. Evidence of magnesium sulfate‐bearing rock has shown that Curiosity has crossed through this phyllosilicate‐sulfate transition.
P. J. Gasda, E. S. Kite, L. M. Thompson, C. Mondro, W. E. Dietrich, C. M. Weitz, B. Tutolo, W. H. Farrand, E. Hausrath, A. Cowart, N. L. Lanza, K. W. Lewis, S. Gupta, A. Roberts, W. Goetz, H. E. Newsom, L. Crossey, J. Lightholder, C. Hardgrove, J. Schieber, S. P. Schwenzer, S. J. VanBommel, S. Schröder, C. D. O'Connell‐Cooper, D. Das, D. Rubin, W. Rapin, T. F. Bristow, E. Rampe, P. D. Archer Jr, C. Seeger, G. Caravaca, J. R. Johnson, S. Le Mouélic, J. A. Grant, J. Davis, J. Lasue, A. Yingst, A. B. Bryk, M. P. Lamb, W. W. Fischer, C. House, E. Dehouck, A. Essunfeld, R. Milliken, R. Sheppard, M. Minitti, D. Ming, S. Simpson, J. Frydenvang, R. M. E. Williams, R. Arvidson, R. Gellert, O. Gasnault, S. M. Clegg, D. Delapp, A. R. Vasavada, A. Fraeman   +57 more
wiley   +1 more source

Study on Effects of Mineral and Pore Characteristics on Mechanical Behavior and Acoustic Emission of Sandstone. [PDF]

ACS Omega
Tan S, Li W, Li H, Zhou L, Yu M.
europepmc   +1 more source

Testing the Limits of Provenance Analysis From Basaltic Fluvial Sediment Near Sandvatn, Iceland, as a Mars Analog

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detrital sediments that accumulate downstream and are preserved in sedimentary rocks can allow characterization of geologic formations that are inaccessible for spatial or temporal reasons. However, mixing, sorting, and alteration of sediment during transport may complicate reconstruction of protolith characteristics.
Audrey R. Putnam, Kirsten L. Siebach, Michael T. Thorpe, Valerie M. Tu, Elizabeth B. Rampe, Candice C. Bedford, Gelu Costin, Joseph J. Tamborski   +7 more
wiley   +1 more source

Neighboring Ridgetops With Distinct Weathering Drivers Have Strikingly Similar Saprolite Chemical Weathering

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Chemical weathering, and the subsequent porosity it generates controls soil development, water cycling, and nutrient availability. However, predicting spatial variability in chemical weathering remains challenging due to complex interactions between dominant drivers including climate, topography, water cycling, and vegetation dynamics.
Amanda Donaldson, Russell P. Callahan, Nerissa Barling, Daniella Rempe, Mong‐Han Huang, Margaret Zimmer   +5 more
wiley   +1 more source

Excess ⁴⁰Ar retention in metamorphosed amphibole complicates ⁴⁰Ar/³⁹Ar geochronological interpretation of diabase. [PDF]

Sci Rep
Zhang WF, Wang JJ, Chen JL, Zheng DW, Ma L, Xiao M, Zhang YL, Jiang YD, Xu YG.   +8 more
europepmc   +1 more source