Results 131 to 140 of about 222,262 (199)

Effects of Acclimation Temperature on Responses of Blackfoot Pāua (Haliotis iris) to Acute Temperature Change, Reduced Salinity and Progressive Hypoxia

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 3, September 2026.
Effects of acclimation temperature with acute temperature, reduced salinity or lowered dissolved oxygen are significant stressors to physiological and biological responses of adult Pāua. Pāua have a limited ability to acclimate to temperatures above 18 °C.
Thuy Thi Nguyen   +3 more
wiley   +1 more source

Porous and Permeable Crystalline Basement: Evidence for Large‐Scale Hydraulic Connectivity at Kivetty, Finland

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Porosity and permeability in crystalline shield basement are commonly assumed to be low, yet some fault zones sustain fluid circulation over kilometer scales. Here we quantify multiscale fault‐zone connectivity at Kivetty, central Finland, by integrating legacy deep‐borehole data, including packer tests, downhole logs, and a long‐term multi ...
Daniel Carbajal‐Martínez   +8 more
wiley   +1 more source

Formation and Alteration of Magnesite Nodules From Kunwarara, Queensland, Australia, as an Analog to Mg‐Carbonate Formation on Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Magnesite (MgCO3) is a magnesium (Mg) carbonate mineral that records the aqueous environmental conditions of its formation. On Earth, magnesite forms in metamorphic, diagenetic or pedogenic environments, and distinguishing between these environments is critical for understanding the fluid chemistry during magnesite precipitation. Mg carbonates
E. L. Cardarelli   +6 more
wiley   +1 more source

Microstructures and Trace Element Signatures of Orogenic Quartz Veins in the Klondike District, Yukon Territory, Canada.

open access: yes, 2012
The rich placer gold deposits of the Klondike District in the Yukon Territory are derived from orogenic gold-bearing quartz veins, associated with the metamorphism of the Klondike Schist basement rock.
Wolff, W. R. Gareth
core   +1 more source

Visible to Near‐Infrared Properties of Felsic Rocks: Plagioclase Detection Limits and Applications to Mars Orbital Spectra

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Widespread plagioclase detections on Mars using orbital visible to near infrared (VNIR) reflectance spectra have led to multiple interpretations of “feldspathic” terrain, ranging from ancient crustal material and evolved plutons to volcanic lava flows.
Hunter Vannier   +5 more
wiley   +1 more source

The Parguera Fault System: Possible Quaternary Reactivation of Bedrock Faults in Southwest Puerto Rico

open access: yesTectonics, Volume 45, Issue 9, September 2026.
Abstract We present evidence of a previously unrecognized east‐west‐trending normal fault, named the Parguera Fault, in southwest Puerto Rico. The fault is located at the northwestern edge of seismicity from the southwest Puerto Rico seismic sequence that began in 2019, near the coastal town of La Parguera.
Jessica Thompson Jobe   +12 more
wiley   +1 more source

Evaluating Forced Versus Plume‐Induced Subduction Initiation for the Talkeetna‐Bonanza Arc System: Implications for Permo‐Triassic Paleogeography of the North American Cordillera

open access: yesTectonics, Volume 45, Issue 9, September 2026.
Abstract The mechanisms by which new subduction zones form remain highly debated. Here we use Permo‐Triassic strata to evaluate potential mechanisms for initiation of the Talkeetna‐Bonanza Arc of the northern North American Cordillera. New mapping and analysis of Permian and Upper Triassic strata on the Alaska Peninsula suggest a period of uplift ...
Brandon M. Keough   +2 more
wiley   +1 more source

Initiation, Growth, and Contractional Deformation of Minibasins in a Salt‐Bearing Inverted Atlantic‐Type Rifted Margin: The Cotiella Massif (Southern Pyrenees)

open access: yesTectonics, Volume 45, Issue 9, September 2026.
Abstract The study of offshore salt‐bearing rifted margins is commonly limited by seismic data resolution. Through the incorporation of salt‐bearing rifted margins in orogenic belts, some field analogs are still present at the surface. The Cotiella Massif, in the Southern Pyrenees, is an exceptional outcrop of the former Bay of Biscay–Pyrenean Atlantic
M. Estiarte‐Ruiz   +3 more
wiley   +1 more source

Dolomitic Microfossil Preservation in a Cryogenian Microbial Reef, Arkaroola (South Australia)

open access: yesGeobiology, Volume 24, Issue 5, September/October 2026.
ABSTRACT Microbial dolostones that now form the Arkaroola reef, northern Adelaide Rift Complex, and were deposited during the Cryogenian interglacial period, display a wide range of meso‐scale stromatolite morphotypes in outcrop. Microcharacterisation involving optical microscopy, combined scanning electron microscopy and energy dispersive spectroscopy
France Champenois   +2 more
wiley   +1 more source

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