Results 41 to 50 of about 1,367 (117)

Composición isotópica (13C/12C y 18 O/16 O) de las rocas encajantes de los yacimientos Zn-Pb del Cretácico Inferior de Cantabria (Sector Reocín-La Florida). [PDF]

open access: yes, 1989
En este trabajo se presentan datos de la composición isotópica en carbono y oxígeno de rocas carbonáticas (calizas y dolomías) en el sector Reocín-La Florida (Cantabria).
Bustillo Revuelta, Manuel   +2 more
core   +1 more source

Finite element analysis of early deformations of carbonate platforms driven by differential compaction of basinal unit

open access: yesBasin Research, Volume 36, Issue 5, September–October 2024.
We investigate the relation between the differential compaction of the basinal unit and the early deformation of a growing carbonate platform using a 2D finite element model (a). We compare the results with two Triassic carbonate platforms in the Italian Dolomites: Lastoni di Formin and Nuvolau Mts (b).
Niccolò Menegoni   +3 more
wiley   +1 more source

Estudio cronoestratigráfico de la cueva del Reguerillo y su correlación con la geología del Cuaternario [PDF]

open access: yes, 1972
El objeto de la presente comunicación es mostrar los primeros resultados de las investigaciones que actualmente se vienen realizando sobre la Cueva del Reguérillo, con la colaboración importante de los centros: Gabinete de Aplicaciones Nucleares a las
Torres Pérez-Hidalgo, Trinidad José
core  

A Middle Triassic Cassian‐type fauna (Pelsa‐Vazzoler Lagerstätte) and the adaptive radiation of the Modern evolutionary fauna

open access: yesPapers in Palaeontology, Volume 10, Issue 4, July/August 2024.
Abstract We describe a high‐diversity silicified assemblage of marine molluscs (Pelsa‐Vazzoler Lagerstätte) from the upper Ladinian of the Agordo Dolomites (northeastern Italy). New data on the Triassic rebound, after the end‐Permian mass extinction, constrain it to an interval of relatively stable climatic conditions.
Stefano Dominici   +2 more
wiley   +1 more source

THE LATE TRIASSIC-HETTANGIAN BIVALVES TURNOVER IN LOMBARDY (SOUTHERN ALPS)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
One of the major mass extinctions of the Phanerozoic took place at the Rhaetian-Hettangian boundary. According to some researchers, it might have been preceded by a minor event at the end of the Carnian. The faunal association present in the Late Trixsic
ANDREA ALLASINAZ
doaj   +1 more source

Lower-Middle Cambrian Palaeogeography of the Northern Spain [PDF]

open access: yes, 1993
[Resumen] Se analizan los datos litoestratigráficos y el contenido bioestratigráfico de la secuencia del Cámbrico Inferior y Medio en una veintena de localidades de la región Cantábrica, Sierra de la Demanda y Cadenas Ibéricas (norte de España).
Liñán, E., Sdzuy, K.
core   +1 more source

Co‐precipitation of primary dolomite and Mg‐rich clays in Deep Springs Lake, California

open access: yesSedimentology, Volume 71, Issue 4, Page 1363-1383, June 2024.
ABSTRACT In contrast to the prevalence of dolomite [CaMg(CO3)2] in the geological record, there are few instances of recent formation. This discrepancy occurs despite supersaturation with respect to dolomite in many modern marine and lacustrine environments.
Franklin W. C. Hobbs   +4 more
wiley   +1 more source

Una dolomía muy especial. Una propuesta conjunta de trabajo de campo y laboratorio con alumnos de educación secundaria obligatoria

open access: yesRevista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2017
Este trabajo describe una actividad de laboratorio que reproduce la producción biológica de sulfuro de hidrógeno a microescala y el estudio básico del metabolismo microbiano. Esta actividad ayuda a comprender al alumnado de enseñanza media el por qué del
José Pedro López-Pérez   +1 more
doaj  

Archaeological research in the upper basin of arroyo Tapalqué: a model of human occupation for the center of the pampa húmeda sub-region during the late holocene [PDF]

open access: yes, 2011
En este trabajo se resumen las evidencias arqueológicas generadas para los sitios localizados en los diversos ambientes de la cuenca superior del arroyo Tapalqué.
Messineo, Pablo Geronimo
core  

Soft‐sediment deformation structures and Neptunian dykes across a carbonate system: Evidence for an earthquake‐related origin (Norian, Dolomia Principale, Southern Alps, Italy)

open access: yesSedimentology, Volume 71, Issue 3, Page 827-849, April 2024.
Abstract Identification of the processes producing soft‐sediment deformation structures, common in siliciclastic deposits and less abundant in carbonate successions, is complex, because different processes may produce similar structures. Thus, interpreting the origin of these structures may be challenging: it requires both a detailed sedimentological ...
Fabrizio Berra
wiley   +1 more source

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