Results 11 to 20 of about 52,738 (228)

Late Pleistocene glacial fluctuations in Cordillera Oriental, subtropical Andes

Quaternary Science Reviews, 2017
Abstract The behavior of subtropical glaciers during Middle to Late Pleistocene global glacial maxima and abrupt climate change events, specifically in Earth's most arid low-latitude regions, remains an outstanding problem in paleoclimatology. The present-day climate of Cordillera Oriental, in arid northwestern Argentina, is influenced by shifts in ...
Mateo A. Martini, Michael R. Kaplan, Jorge A. Strelin, Ricardo A. Astini, Joerg M. Schaefer, Marc W. Caffee, Roseanne Schwartz   +6 more
openaire   +4 more sources

A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]

, 2011
The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral, Baldo, Castroviejo, Castroviejo, Cawood, Chew, Colombo C.G. Tassinari, Dalmayrac, Dalziel, Eurico Pereira, Fuck, Irvine, Jorge Acosta, Jose F. Rodrigues, Le Maitre, Ludwig, Megard, Palme, Pearce, Pedrosa-Soares, Ramos, Ramos, Ramos, Ricardo Castroviejo, Sato, Steiger   +25 more
core   +3 more sources

Geología del cuadrángulo K-13, Tauramena

Boletín Geológico, 1981
El área objeto de este informe está localizada en el borde oriental de la cordillera Oriental de Colombia y se caracteriza por una topografía abrupta a suavemente ondulada en la región andina y plana en los Llanos Orientales.
Carlos E. Ulloa Melo, Erasmo Rodríguez Martínez   +1 more
doaj   +1 more source

First records of the Truandó Toad, Rhaebo haematiticus (Cope, 1862) (Anura, Bufonidae) in the Middle Cauca river valley, Caldas, Colombia [PDF]

Check List, 2023
We present the first records of the Truandó Toad, Rhaebo haematiticus (Cope, 1862), in the inter-Andean valley of the Middle Cauca River, Colombia, the second largest inter-Andean basin of the country.
Héctor Fabio Arias-Monsalve, Luis Santiago Caicedo-Martínez, Juan Felipe Cardona-Zuluaga, Alexandra Cardona-Giraldo, Héctor E. Ramírez-Chaves   +4 more
doaj   +3 more sources

Biodiversity in mountain soils above the treeline. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also the case for mountain soils, but no study to date has provided an overall synthesis of the current state of knowledge. Here we fill this gap with a first global analysis of published research on cryptogams, microorganisms, and fauna in ...
Praeg N, Steinwandter M, Urbach D, Snethlage MA, Alves RP, Apple ME, Bilovitz P, Britton AJ, Bruni EP, Chen TW, Dumack K, Fernandez-Mendoza F, Freppaz M, Frey B, Fromin N, Geisen S, Grube M, Guariento E, Guisan A, Ji QQ, Jiménez JJ, Maier S, Malard LA, Minor MA, Mc Lean CC, Mitchell EAD, Peham T, Pizzolotto R, Taylor AFS, Vernon P, van Tol JJ, Wu D, Wu Y, Xie Z, Weber B, Illmer P, Seeber J.   +36 more
europepmc   +2 more sources

An in situ shelly fauna from the lower Paleozoic Zapla diamictite of northwestern Argentina: implications for the age of glacial events across Gondwana [PDF]

, 2015
A shelly fauna from the upper part of the Zapla glacial diamictite includes thelingulate brachiopod Orbiculoidea radiata Troedsson, the rhynchonelliforms Dalmanella cf. testudinaria (Dalman) and Paromalomena sp., the bivalve Modiolopsis?
Benedetto, Juan Luis Arnaldo, de la Puente, Graciela Susana, Halpern, Karen, Monaldi, Cesar Ruben   +3 more
core   +2 more sources

Holocene Fires and Ecological Novelty in the High Colombian Cordillera Oriental

Frontiers in Ecology and Evolution, 2022
Rapid climate changes and the increasing presence of humans define the Holocene Epoch (11.6 calibrated kiloyears before present – hereafter kyr BP), when biological systems have faced the most recent and abrupt environmental changes. Understanding how biodiversity responds to extrinsic factors requires determining the effects of varying climatic ...
Ismael G. Espinoza, Felipe Franco‐Gaviria, Ivonne Castañeda, Charlotte Robinson, Alex H. Room, Juan Carlos Berrío, Dolors Armenteras, Dunia H. Urrego   +7 more
openaire   +3 more sources

Survey of cryogenic processes, periglacial forms and permafrost conditions in South America [PDF]

, 2000
Este inventário fornece informações sobre o estado da arte e os avanços recentes da Geocriologia nos países da América do Sul onde ocorre permafrost ou congelamento sazonal dos solos e onde este campo de pesquisa tem interesse científico.
Trombotto, Dario Tomas
core   +1 more source

The Pleistocene Glyptodontidae Gray, 1869 (Xenarthra: Cingulata) of Colombia and some considerations about the South American Glyptodontinae [PDF]

, 2012
Until recently, one well-characterized Pleistocene genus of the subfamily Glyptodontinae (Glyptodon ca. 1.08-0.0011 My) was recognized in South America.
Arenas Mosqueras, José E., Francia, Analia, Miño Boilini, Ángel Ramón, Zurita, Alfredo Eduardo   +3 more
core   +2 more sources

Metalurgia temprana en la Cordillera Oriental de Colombia

Boletín de Antropología, 2010
Resumen. Recientes hallazgos arqueológicos y la obtención de fechas de C14 para piezas pertenecientes a colecciones de museo han permitido corroborar la existencia de metalurgia en el periodo Herrera de la Cordillera Oriental de Colombia, cambiando drásticamente las ideas preexistentes sobre el origen de esta industria en la región.
Roberto Lleras, Javier Gutiérrez, Helena Pradilla   +2 more
openaire   +1 more source