Results 131 to 140 of about 1,983,107 (202)

Porosity Preservation in Deeply Buried (8500 m) Jurassic Calcareous Mudstones of the Vienna Basin (Austria)

open access: yesTerra Nova, Volume 38, Issue 5, Page 306-313, October 2026.
ABSTRACT Significant porosity of more than 5% was found at depths of more than 8500 m in poorly sorted, calcareous mudstones of the Malmian Mikulov Formation. These overpressured rocks are the main hydrocarbon source rock in the Vienna Basin. Core samples from present‐day depths of 8150 m to 8550 m were analysed using X‐ray diffraction and scanning ...
Susanne Gier   +3 more
wiley   +1 more source

A Shallow‐Marine Ecosystem Before Initial Tibetan Plateau Uplift

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The uplift of the Tibetan Plateau profoundly influences global atmospheric circulation, sediment transport, and biodiversity, but its pre‐uplift marine paleoenvironment remains poorly understood. Here we report the first discovery of an in situ benthic fossil assemblage from the Puga area in central Tibet, which was deposited on a shallow ...
Ming Wang   +12 more
wiley   +1 more source

Fluid Injection Triggers Large‐Scale Slow‐Slip Activation of the Rocky Mountain Fold and Thrust Belt

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Using interferometric synthetic aperture radar (InSAR) we show that hydraulic fracturing treatments near the subsurface deformation limit of the Rocky Mountain Fold and Thrust Belt produced 12 intraplate, aseismic, slow‐slip events with magnitudes Mw ${M}_{w}$ 4.71–5.06 at 1,640–2,410 m depths.
Mirko van der Baan   +5 more
wiley   +1 more source

Black Hills National Forest, National Grasslands 1961: A Summary of Progress

open access: yes, 1961
Annual report for the Black Hills National ...
Black Hills National Forest (Agency : U.S.)
core  

Potassium enrichment mechanism and controlling factors in Cambrian black shale from eastern Guizhou, China. [PDF]

open access: yesSci Rep
Fu J   +9 more
europepmc   +1 more source

Source‐Unbiased Subsurface Monitoring With Seismic Noise

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study addresses a key limitation of seismic noise interferometry for subsurface monitoring: the impact of non‐stationary sources on seismic velocity change estimates. Conventional methods rely on time‐period references, which can inherit source‐related effects when source conditions vary, biasing the estimated velocity changes.
Pilar Sánchez‐Pastor   +7 more
wiley   +1 more source

["Junior Black Academy vs Dallas" documentary video]

open access: yes, 1984
Video footage provided by The Black Academy of Arts and Letters recorded during a news section on the conflict between the city of Dallas and the academy over a new location in the developing Dallas arts district.
Black Horizons
core  

Cedar Pass - Badlands;Cedar Pass - Black Hills Scene;

open access: yes
This is a 7x5 glass plate of an individual in an automobile with eroded buttes in the distance. Title(s) by Carpenter, L.392 H86-038 Lester Black Collection Vault 334-417 Box 5 of 8 Glass plates H86-037 Lester Black Collection Black Hills Trip Black ...
Black, Lester
core  

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