Silt-sized sediments and gypsum on surface formations in the Ebro Basin: a disambiguation of the term 'gypsiferous silts'

Autor: Rosa M. Poch, Rafael Rodríguez-Ochoa, Octavio Artieda, J. Carles Balasch, Jaume Boixadera

Publikováno v: Geologica Acta, Vol 19, Iss 8, Pp 1-21 (2021)

The term “gypsiferous silts” has been used since the 1960s by many authors, but it has relied on unclear, am-biguous criteria that attributed aeolian, colluvial or alluvial origins to these materials. The aim of this paper is to clarify the use o

Externí odkaz: https://doaj.org/article/17eaa4f9ab3f4c36b44f14f792f38ca0

Silt-sized sediments and gypsum on surface formations in the Ebro Basin : a disambiguation of the term 'gypsiferous silts'

Autor: Jaume Boixadera, Josep Carles Balasch, Rafael Rodríguez-Ochoa, Octavio Artieda, Rosa M. Poch

Publikováno v: Repositorio Abierto de la UdL
Universitad de Lleida
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Geologica Acta; Vol. 19 (2021); 1-21
RCUB. Revistas Científicas de la Universidad de Barcelona
Universitat Jaume I
RCUB: Revistas Científicas de la Universidad de Barcelona
Universidad de Barcelona (UB)

The term “gypsiferous silts” has been used since the 1960s by many authors, but it has relied on unclear, ambiguous criteria that attributed aeolian, colluvial or alluvial origins to these materials. The aim of this paper is to clarify the use of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a905579e031bb12dafa1d0a64cc4c65
https://ddd.uab.cat/record/250168

Crystalline water in gypsum is unavailable for cyanobacteria in laboratory experiments and in natural desert endolithic habitats

Autor: Petr Vítek, Fernando Garcia, Armando Azua-Bustos, Alberto G. Fairén, Jacek Wierzchos, Octavio Artieda, Carmen Ascaso

Publikováno v: Proc Natl Acad Sci U S A
Proceedings of the National Academy of Sciences
Digital.CSIC. Repositorio Institucional del CSIC
instname
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
Instituto Nacional de Técnica Aeroespacial (INTA)

Huang et al. (1) describe a supposed mechanism of water extraction from gypsum by cyanobacteria sampled from endoliths inhabiting Ca sulfates in the Atacama Desert, and cultivated in the laboratory. The authors claim that the phase transformation fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fd6fd9d944263056556231449c6e92a
http://hdl.handle.net/10261/232299

Raman microspectrometric study of pigments in melanized fungi from the hyperarid Atacama desert gypsum crust

Autor: Jan Jehlička, Adam Culka, Cristina M. Casero, Jacek Wierzchos, Carmen Ascaso, Octavio Artieda

Publikováno v: Journal of Raman Spectroscopy. 48:1487-1493

Microbial communities composed by eukaryotic microorganisms: melanized fungi and algae colonizing the interior of gypsum crusts in hyperarid zone of the Atacama desert were studied by Raman microspectroscopy. Melanin pigments present in fungi cell wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0becef79d260a1fe4936468d515cf472
https://doi.org/10.1002/jrs.5137

Biosignatures and microbial fossils in endolithic microbial communities colonizing Ca-sulfate crusts in the Atacama Desert

Autor: Asunción de los Ríos, Octavio Artieda, Virginia Souza-Egipsy, Beatriz Cámara, Carmen Ascaso, Jacek Wierzchos

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname

Since the description of microbial communities colonizing Ca-sulfate crusts in the Atacama Desert, there has been much interest in the mechanisms that could lead to the formation and preservation of biosignatures or microbial fossils of these communi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a45180e93872f1962790b88d0a13df
https://doi.org/10.1016/j.chemgeo.2016.09.019