Results 61 to 70 of about 1,252 (175)

Microbial Diversity and Mineralogical-Mechanical Properties of Calcitic Cave Speleothems in Natural and in Vitro Biomineralization Conditions

open access: yesFrontiers in Microbiology, 2018
Natural mineral formations are a window into important processes leading to carbon storage and mineralized carbonate structures formed through abiotic and biotic processes. In the current study, we made an attempt to undertake a comprehensive approach to
Navdeep K. Dhami   +2 more
doaj   +1 more source

Organic matter of fossil origin in the amberine speleothems from El Soplao Cave (Cantabria, Northern Spain)

open access: yesInternational Journal of Speleology, 2012
Unusual amberine-coloured speleothems were recently found in El Soplao Cave (Cantabria, Spain). Chromophore elements such as Fe, Mn, Cd, Co or Ti were not present in significant quantities.
Gázquez Fernando   +4 more
doaj  

Diagenesis of a drapery speleothem from Castañar Cave: from dissolution to dolomitization

open access: yesInternational Journal of Speleology, 2012
A drapery speleothem (DRA-1) from Castañar Cave in Spain was subjected to a detailed petrographical study in order to identify its primary and diagenetic features.
Martín-Pérez A.   +2 more
doaj  

The environmental features of the Monte Corchia cave system (Apuan Alps, central Italy) and their effects on speleothem growth [PDF]

open access: yesInternational Journal of Speleology, 2008
The Monte Corchia cave system, one of the most famous and popular caves in Italy, has in recent times been the subject of investigation on its speleothems as paleoclimate archives.
Piccini Leonardo   +15 more
doaj  

Speleothems

open access: yesNatura Croatica, 2005
Recenzija knjige "Sige" autora Damira Lackovića u izdanju Hrvatskog prirodoslovnog muzeja.
openaire   +1 more source

Spatial and temporal distribution of palaeoclimatic records in the Maya Area

open access: yesRevista Mexicana de Ciencias Geológicas
Palaeoclimatic research has been performed in the Maya Area (MA), using mainly lake sediment cores and speleothems. Most of the studies have been performed in the lowlands, leaving the highlands unexplored.
Haydar Martinez-Dyrzo
doaj   +1 more source

Obtaining High‐Resolution Magnetic Records From Speleothems Using Magnetic Microscopy

open access: yesGeochemistry, Geophysics, Geosystems
Speleothems are mineral deposits capable of recording detrital and/or chemical remanent magnetization at annual timescales. They can offer high‐resolution paleomagnetic records of short‐term variations in Earth's magnetic field, crucial for understanding
Cauê S. Borlina   +12 more
doaj   +1 more source

Petrography and sedimentary sequence relationships of speleothems from the Cradle of Humankind, South Africa

open access: yesResults in Earth Sciences
Speleothems are ubiquitous sedimentary features of caves in the Cradle of Humankind (locally referred to as the Cradle). Dominantly composed of calcite/remnant aragonite, these deposits are often interbedded with clastic sediments, which host a rich ...
Georgina Luti   +3 more
doaj   +1 more source

Black Mn-Fe crusts as markers of abrupt palaeoenvironmental changes in El Soplao Cave (Cantabria, Spain)

open access: yesInternational Journal of Speleology, 2011
Peculiar iron and manganese deposits coating walls, floors and ceilings of many galleries are one of the special features of the ElSoplao Cave (Cantabria, Spain).
Gazquez Fernando   +2 more
doaj  

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