Results 131 to 140 of about 1,726,480 (235)

Middle-late Devonian warming and land plant evolution drive changes in silicate weathering: A new 87Sr/86Sr conodont record paired with δ18O [PDF]

The Devonian Period (419 to 359 Ma) is marked by a shift from cooling in the Early Devonian to warming in the Middle-Late Devonian. Previous studies have hypothesized that an increase in metamorphic degassing during the Acadian Orogeny caused the late ...
Mills, B.J.W., Avila, T.D., Joachimski, M.M., Saltzman, M.R., Griffith, E.M.   +4 more
core   +1 more source

Multiple Subduction–Exhumation Cycles and Episodic Hydration–Metasomatism of an Oceanic Eclogite Block: Implications for Thermal Structure Evolution and Mass Transfer at the Subduction Interface

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The rarity of natural rocks that specifically record the physicochemical conditions of the subduction interface strongly hampers pertinent studies on metamorphic trajectories of high‐pressure (HP) rocks and related fluid–rock interactions. This study examines an oceanic eclogite block from the Huwan shear zone in the Hong'an orogen.
Dadi Cao, Liqing Xu, Xiangxin Zhang, Haofan He, Kang Cheng   +4 more
wiley   +1 more source

Subduction Recycling and Closure of the Paleo‐Asian Ocean in the Beishan Orogen: Constraints From the Niujuanzi Ophiolitic Mélange and Associated Intrusions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song, Xijun Liu, Yao Xiao, Honghu Zeng, Pengde Liu   +4 more
wiley   +1 more source

The Devonian continental rocks of the lower Restigouche River, Quebec

, 1968
The Devonian continental rocks outcropping between Campbellton, New Brunswick and Miguasha, Quebec are regrouped on the basis of new stratigraphic information and the ages now suggested are thought to be in accord with new data. An Early or early Middle
B. P. J. Williams, D. L. Dineley
core   +1 more source

Cambrian Stage 3 Paleomagnetism of the South China Block: Implications for Early Paleozoic Gondwana Reconstructions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The paleogeographic position of the South China Block (SCB) during the early Paleozoic and its affiliation with Gondwana remain debated. We report new high‐quality paleomagnetic data from sandstone‐dominated Cambrian Stage 3 strata correlated with the Yu'anshan–Hongjingshao succession collected along the southwestern margin of the SCB ...
Dongmeng Zhang, Xin Cheng, Vadim A. Kravchinsky, Mengting Zhong, Bitian Wei, Nan Jiang, Longyun Xing, Shuqi Lan, Weijie Zhang, Jiahui Zhang, Chao Chang, Wei Liu, Yanan Zhou, Xingliang Zhang, Hanning Wu   +14 more
wiley   +1 more source

Looking Under the Orogenic Lid—Assessing the European Basement Beneath the Alpine Wedge by U‐Pb Zircon Geochronology

Tectonics, Volume 45, Issue 10, October 2026.
Abstract Following continental collision, the distal European margin was overridden by the Alpine wedge and is now largely concealed beneath the mostly intact orogenic lid. Consequently, the geological evolution and nature of the hidden basement domains remain poorly constrained.
Bianca Heberer, Elisabeth Holzner, Veronika Tenczer, Friedrich Finger, Bernhard Salcher, István Dunkl, Axel Gerdes, Hans Egger, Gertrude Friedl, Gabor Tari, Maria Parlea, Hubert Putz   +11 more
wiley   +1 more source

A provisional Radiolaria biostratigraphy, Late Devonian through Late Permian [PDF]

Open-File Report, 1980
Brian K. Holdsworth, David Lawrence Jones   +1 more
openaire   +1 more source

The walls boundary fault zone and the MØre TrØndelag fault complex:: a case study of two reactivated fault zones. [PDF]

, 2001
It is commonly observed that ancient faults or shear zones can become reactivated again and again, either within the same or even superimposed tectonic episodes, yet millions of years apart.
Watts, Lee Mark
core  

Episodic Arc Behavior in an Accretionary Orogen: Insights From the New England Orogen, Eastern Australia

Tectonics, Volume 45, Issue 10, October 2026.
Abstract Detrital zircon U–Pb geochronology from Triassic–Jurassic basins in the New England Orogen (NEO) constrains sediment provenance and episodic continental arc evolution along the eastern Gondwanan margin. Dominant zircon clusters at 270–230 Ma and 340–300 Ma in these basins were likely sourced from contemporaneous magmatism in the NEO ...
Yanxiong Zhang, Gideon Rosenbaum, Carlos Spier   +2 more
wiley   +1 more source

Semi‐Natural Grasslands as Important Soil Carbon Reservoirs: Environmental Drivers of Topsoil Carbon Stocks Across Temperate Grassland Habitat Types

Applied Vegetation Science, Volume 29, Issue 4, October/December 2026.
Temperate semi‐natural grasslands soil organic carbon (SOC) stock was significantly associated with soil characteristics, climate, vegetation structure and management. These results indicate that maintaining long‐term extensive management and preventing conversion or degradation of semi‐natural grasslands can simultaneously support biodiversity ...
Elvi Liiv, Triin Reitalu, Aveliina Helm
wiley   +1 more source