Results 71 to 80 of about 488,094 (231)

Supervolcanes y Supererupciones [PDF]

open access: yes, 2015
NO POSEEFil: Petrinovic, Ivan Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba.
Petrinovic, Ivan Alejandro
core  

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

open access: yes, 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   +3 more
core   +2 more sources

Efecto del contenido de azufre sobre la meteorización del carbón: comparación de dos mantos en Hato de la Virgen (Fm. Carbonera), Venezuela

open access: yesEstudios Geologicos, 2000
Diez muestras de carbón bituminoso, presentando diferentes niveles de meteorización, fueron colectadas a diferentes profundidades de dos minas subterráneas ubicadas en la localidad de Hato de la Virgen, Estado Táchira, Venezuela: la galería G-ll, donde ...
M. Martínez   +4 more
doaj   +1 more source

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

open access: yesArchaeometry, Volume 68, Issue 3, Page 317-329, June 2026.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río   +6 more
wiley   +1 more source

Middle Darriwilian conodont zones in the uppermost San Juan limestone and the lower member of the Las Aguaditas formation, central Precordillera of San Juan, Argentina [PDF]

open access: yes, 2013
The geological province of Precordillera is located in western Argentina. It extends 450 km meridionally and 110 km from east to west (Fig. 1) (Furque and Cuerda, 1979).
Albanesi, Guillermo Luis   +2 more
core  

“Humanizar”: aprendizajes sobre alteridad, salud y futuro en una experiencia de investigación compartida

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 2, June 2026.
ABSTRACT The visit to Bogotá of a fééeneminaa (Muinane) friend, Célimo Nejedeka Jifichíu, and in particular, his work in researching and transmitting traditional health knowledge, offer the pretext to navigate the relationship between elements that at first glance seem distant from each other: indigenous imaginaries about otherness, their visions of ...
Giovanna Micarelli
wiley   +1 more source

Fault‐Mediated Groundwater‐Surface Water Mixing Amplifies Hydrochemical/Hydrological Dynamics in a Semi‐Arid Volcanic Lake Basin

open access: yesHydrological Processes, Volume 40, Issue 5, May 2026.
Isotopes data help to understand the GW‐SW connectivity, the recharge elevations, and evaporation in a volcanic lake basin. ABSTRACT Understanding groundwater (GW) to surface water (SW) connectivity (i.e., the exchange of water and solutes between aquifers and surface bodies) is increasingly important under changing climate conditions, where ...
L. Ramírez‐González   +9 more
wiley   +1 more source

Condicionantes variscos, extensión mesozoica e inversión cenozoica del anticlinal de Tabuenca-Rodanas (Cordillera Ibérica)

open access: yesGeogaceta
El anticlinal de Tabuenca – Rodanas es una estructura NW-SE situada en el sector septentrional de la Rama Aragonesa de la Cordillera Ibérica. Está compuesto por una gran variedad de materiales paleozoicos y mesozoicos.
Raúl Lázaro González   +2 more
doaj   +1 more source

Estudio de la presencia de la Geología en currículos oficiales autonómicos de Educación Primaria [PDF]

open access: yes, 2018
El trabajo analiza los contenidos relacionados con las Ciencias de la Tierra presentes en currículos oficiales autonómicos de Educación Primaria. Se pretende conocer si la presencia de estos contenidos y su secuenciación son coherentes con los principios
Calonge García, Mª Amelia   +1 more
core   +1 more source

Spatial and Temporal Variability of Eastern Pacific Radiocarbon and Carbon Chemistry From the Ice Age to Today

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract Proxy records of seawater radiocarbon (14C/C) provide strong constraints on how changes in ocean ventilation contributed to the increase in atmospheric CO2 during the termination of the last ice age (≈18,000‐to‐12,000 years ago). One outstanding problem, however, is the existence of anomalously low deglacial benthic foraminiferal 14C/C in the ...
Patrick A. Rafter   +14 more
wiley   +1 more source

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