Impact Reactivation of a Hydrothermal System in Basalt in the Vargeão Dome Impact Structure, Brazil
Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.Abstract As hydrous minerals have been observed in impact craters on Mars, impact‐generated hydrothermal systems (IGHSs) have been considered as potential habitats for life on that planet. The Vargeão Dome, a 12 km wide impact structure in southern Brazil, was formed in basalts with at least two hydrothermal alteration stages.
Jitse Alsemgeest +5 more
wiley +1 more source
Isothermal Thermoluminescence Dating of Coral Reef Calcite: Implications for Sea‐Level Change
Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.Abstract Reconstructing past sea‐level changes is critical in Quaternary science. On remote oceanic reefs, aragonite‐to‐calcite alteration occurs during subaerial exposure, directly recording the timing of sea‐level fall. U–Th dating of coral calcite is challenging due to open‐system issues.
Junjie Wei +9 more
wiley +1 more source
Complex belemnites of the Puaroan (lower-? middle Tithonian) stage in the Port Waikato Region of New Zealand [PDF]
, 1970 Belemnite guards range through 2700 feet of Puaroan strata in the Port Waikato region. All are Belemnopsis of the uhligi-complex. Belemnopsis aucklandica aucklandica (Hochstetter) in its most typical form may be restricted to the lower 700 feet of the ...
Challinor, A.B.
core +1 more source
Development of quartz c-axis crossed/single girdles under simple-pure shear deformation: Results of visco-plastic self-consistent modeling [PDF]
, 2014 Nie, Guanjun, Shan, Yehua
core +1 more source
The Acraman impact and its widespread ejecta, South Australia [PDF]
Discovery of a widespread horizon of shock-deformed volcaniclastic ejecta preserved in Late Proterozoic (approx. 600 Ma) shales in South Australia and its probable link to the Acraman impact structure in the Middle Proterozoic Gawler Range.
Gostin, V. A. +2 more
core +1 more source
Geological and physicochemical characterization of Kobe Sorsa graphite deposit, Ethiopia. [PDF]
Sci RepEmmiru BT, Tsegaye SG, Sahoo PR.
europepmc +1 more source
Stress heterogeneities in exhumed high-pressure rocks shed light on deep subduction interface transient coupling. [PDF]
Nat CommunWu Y +5 more
europepmc +1 more source
Buried, not erased: palynofloras in ultra-high-pressure metamorphic rocks. [PDF]
Sci RepCarosi R +6 more
europepmc +1 more source
Nanoscale Pathway of Modern Dolomite Formation in a Shallow, Alkaline Lake. [PDF]
Cryst Growth Des, 2023 Meister P +9 more
europepmc +1 more source