Results 121 to 130 of about 1,087 (206)

Controls on Valley‐Floor Width in the Western Andes

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract River‐valley floors are low relief, confined parts of the landscape that store sediment en route from mountains to lowlands. Transient sediment storage influences sediment budgets, biogeochemical cycles, and the preservation of environmental signals. The controls on valley‐floor width remain poorly understood, limiting the ability to reproduce
S. Tofelde, F. J. Clubb, B. Bookhagen
wiley   +1 more source

Melting Relations of MORB-Sediment Mélanges in Underplated Mantle Wedge Plumes; Implications for the Origin of Cordilleran-type Batholiths

, 2017
This paper gives the results of a set of laboratory experiments designed to analyse the petrological implications of mantle wedge plumes—large buoyant structures predicted by thermomechanical numerical modelling of subduction zones.
Moreno-Ventas, Ignacio, Castro, Antonio, Fernández, Carlos, García-Casco, Antonio, Díaz-Alvarado, Juan, Löw, Irena, Gerya, Taras   +6 more
core  

Editorial for Special Issue “Genesis of Calc-Alkaline Granitic Rocks: Evidence from Petrology and Geochemistry”

Calc-alkaline granitic rocks are fundamental components of continental crust, forming large batholiths in orogenic belts and intrusions across various tectonic regimes [...
Shuang-Qing Li, Long Chen
core   +1 more source

Potassium–Argon Age Determinations of Metamorphic and Plutonic Rocks in the Yukon Crystalline Terrane

, 1975
Forty-four new potassium–argon age determinations on minerals of metamorphic and igneous rocks from the Yukon Crystalline Terrane define the timing of the three most recent thermal events affecting this region.
R. K. Wanless, D. J. Tempelman-Kluit
core   +1 more source

The Exotic Igneous Clasts Attributed to the Cuman Cordillera: Insights into the Makeup of a Cadomian/Pan-African Basement Covered by the Moldavides of the Eastern Carpathians, Romania

Geosciences
The Eastern Carpathians are thrust to the east and north over their Eastern European foreland, tectonically covering it over an area several hundred kilometers across. Information about the nature of the underthrust part of the Carpathian foreland can be
Sarolta Lőrincz, Marian Munteanu, Ştefan Marincea, Relu Dumitru Roban, Valentina Maria Cetean, George Dincă, Mihaela Melinte-Dobrinescu   +6 more
doaj   +1 more source

Long-lived Paleoproterozoic eclogitic lower crust. [PDF]

Nat Commun, 2021
Buntin S, Artemieva IM, Malehmir A, Thybo H, Malinowski M, Högdahl K, Janik T, Buske S.   +7 more
europepmc   +1 more source

Sensitivity of Soil Chemical Erosion Rate to Climate and Dust Along a 2.8‐km Elevation Transect at San Jacinto Mountain, California

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Chemical weathering is of wide interest because it breaks down minerals, releases nutrients, weakens rock, and draws down atmospheric CO2. To quantify the sensitivity of soil chemical erosion rate to climate and dust, we measured soil chemical erosion rate, dust deposition rate, and soil climate at 18 ridgetop sites along a ∼2.8‐km elevation ...
Kai Hu, Ken L. Ferrier, Sarah M. Aarons, Emmet Norris, Rain Blankenship, Shaun Marcott, Rachel Breunig, Gregory Ruetenik, Ian Peters, Elizabeth Ceperley   +9 more
wiley   +1 more source

Arc Heat Flow and Magmatic Heat Budgets

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen, Kazuki Sawayama, Yuri Taran, Giovanni Chiodini, Tsuneomi Kagiyama, Hiroshi Shinohara, Julie V. Rowland, Benjamin A. Black   +7 more
wiley   +1 more source

Protracted High‐Grade Metamorphism and Slow Cooling in the Adirondacks Recalibrate Neoproterozoic Global Paleogeography

Tectonics, Volume 45, Issue 6, June 2026.
Abstract The assembly and breakup of the supercontinent Rodinia set the stage for Earth system evolution through the Neoproterozoic Era. Laurentia, the central craton in Rodinia, lacks well‐dated paleomagnetic poles between ca. 990 Ma and 780 Ma. In this study, we develop new U‐Pb petrochronology and thermochronology data sets from zircon, garnet ...
Yiming Zhang, Eben Blake Hodgin, Mark D. Schmitz, Darin M. Schwartz, Michael T. Mohr, James L. Crowley, Nicholas L. Swanson‐Hysell   +6 more
wiley   +1 more source

United States Geological Survey Reports

, 1954
Report presenting new data on the age of the Boulder, Philipsburg, and Idaho batholiths of western ...
Chapman, Randolph W., Waring, Claude L., Gottfried, David   +2 more
core