Results 91 to 100 of about 6,005,072 (242)

Abrupt Onset and Persistent Downstream Effects of Acid Rock Drainage on Rivers Across Northwest Arctic Alaska

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract Arctic streams and rivers are increasingly vulnerable to degradation from permafrost thaw that releases toxic elements via natural acid rock drainage. However, the spatial and temporal evolution of acid rock drainage on river chemistry across diverse mineral settings remain poorly constrained.
Taylor G. Evinger, Jonathan A. O’Donnell, Michael P. Carey, Joshua C. Koch, Carson A. Baughman, Kenneth R. Hill, Rebecca J. Frei, Brett A. Poulin   +7 more
wiley   +1 more source

Diversity of marsupial frogs (Anura: Hemiphractidae: Gastrotheca) in the northern Cordillera Central, Peru, with the descriptions of two new species

Phyllomedusa: Journal of Herpetology, 2016
Two new species of Gastrotheca are represented by adult females, genomic data of these are included in a phylogenetic analysis, whereby they are placed in the northern clade of the subgenus Gastrotheca. One new species, G.
William E. Duellman, Pablo J. Venegas
doaj  

Global Estimate of Reservoir Hydropower Storage Potential Based on SWOT Observations

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract Hydropower is pivotal to the global transition toward carbon‐neutral energy, yet its actual potential remains constrained by uncertainties. Global assessments have traditionally relied on static metrics, such as dam height, which obscure the dynamic water fluctuations that govern operational reliability.
Lin Huang, Chunqiao Song, Kai Liu, Pengfei Zhan, Xiaomei Fan, Hui Zhang, Yiguang Zou, Yaling Lin, Fanxuan Zeng, Jida Wang   +9 more
wiley   +1 more source

Directrices tectónicas durante la sedimentación del Cretácico medio en la zona central de la Cordillera Ibérica [PDF]

, 1987
La distribución de espesores y facies del Cretácico medio de la zona central de la Cordillera Ibérica, permiten identificar un conjunto de umbrales, surcos y escalones.
García Quintana, Álvaro, PÉREZ DEL CAMPO, P., Carenas, Beatriz, GARCÍA, Álvaro, Segura, Manuel, SEGURA, M., CARENAS, B.   +6 more
core  

Sinopsis del género Puya (Bromeliaceae) en el departamento de Antioquia

Caldasia, 1997
A sinopsis of the genus Puya (Bromeliaceae) in department of Antioquia (Colombia) is provided. Four species are recognized, and the first records for the Central Cordillera are presented. Two new species, P. ochroleuca and P.
Bentacur Bentacur Julio Cesar, Callejas Ricardo   +1 more
doaj  

Petrology of serpentinites associated with the Romeral Suture Zone in the Central Cordillera (Colombia)

Geological Society, London, Special Publications
Serpentinized ultramafic bodies in the Romeral Suture Zone (Colombia) include lithologies from the Angelópolis Ultramafite (AU), Arquía Complex (AC) and Cajamarca Complex (CC). Serpentinites show evidence of three serpentinization events; AU serpentinites and partially serpentinized peridotites recorded a first hydration event within the ocean floor ...
Nathalia A. Pineda-Rodríguez, Carlos A. Zuluaga, Matthias Bernet, Sergio Amaya, Carlos A. Vargas, Alexander Caneva   +5 more
openaire   +1 more source

Building the Andean Crust at ∼35°S: Arc Geochemistry Reveals Cretaceous Thinning and Rapid Neogene Thickening

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Quantification of the timing and mechanisms of crustal thickening in Cordilleran orogenic hinterlands remains challenging. We address this in the Andes using whole‐rock geochemistry and zircon petrochronology from a >70 Myr volcanic record in the Tinguiririca valley of Chile (∼35° ${}^{\circ}$S), which captures a pivotal transition from ...
Chance B. Ronemus, Caden J. Howlett, Peter G. DeCelles, Barbara Carrapa, Andrés Echaurren, Matías Barrionuevo, Jesse G. Mosolf, Michelle L. Foley, Mihai N. Ducea   +8 more
wiley   +1 more source

Interseismic Strain Accumulation and Partitioning in Hispaniola From GNSS and InSAR

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We combine GNSS and InSAR observations to constrain the spatial distribution of strain across the northeastern Caribbean plate boundary, focusing on Hispaniola, to investigate strain partitioning and fault slip rates in an actively deforming tectonic setting with significant seismic hazard.
Christian Emmanuel, Eric Calais, Romain Jolivet, Bryan Raimbault, Steeve J. Symithe, Dominique Boisson   +5 more
wiley   +1 more source

Amphibians (Amphibia, Lissamphibia) from the Cordilleras Central and Occidental, Department of Caldas, Colombia: A century of data collection and research

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
The Andean region of Colombia hosts a high number of endemic amphibian species due to the complex topography of the three main cordilleras and the associated mountain massifs.
Héctor F. Árias-Monsalve, Erika Alejandra Cardona-Galvis, L. Santiago Caicedo-Martínez, Julián A. Rojas-Morales, Jose J. Henao-Osorio, Héctor E. Ramírez-Chaves   +5 more
doaj   +1 more source

Preserved Through Hyperaridity, 150 Million Years of Exhumation and Strike‐Slip Deformation in the Atacama Coastal Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The Coastal Cordillera of northern Chile, in the forearc of the Andean subduction zone, provides an ideal site to evaluate exhumation above the oldest active subduction under extreme aridity. This range lies parallel to a sediment‐starved trench, has experienced hyperaridity since the Miocene, and is transected by the ∼1,000‐km‐long Atacama ...
T. F. Aránguiz‐Rago, A. R. Duvall, K. W. Huntington   +2 more
wiley   +1 more source