Zobrazeno 1 - 10
of 121
pro vyhledávání: '"SILVIA FRISIA"'
Autor:
Mohammadali Faraji, Andrea Borsato, Silvia Frisia, John C. Hellstrom, Andrew Lorrey, Adam Hartland, Alan Greig, David P. Mattey
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract Tropical Pacific stalagmites are commonly affected by dating uncertainties because of their low U concentration and/or elevated initial 230Th content. This poses problems in establishing reliable trends and periodicities for droughts and plu
Externí odkaz:
https://doaj.org/article/aef2194afd9541e38a13ad5ffcd1a266
Autor:
FLAVIO JADOUL, SILVIA FRISIA
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 94, Iss 1 (2020)
The "evinosponge" are globose structures, both isolated and in anastomotic groups, whose size ranges from a few centimeters up to 3 meters. Each structure consists of several isopachous concentric crusts composed of low-Mg calcite crystals arranged i
Externí odkaz:
https://doaj.org/article/ae5f4fe863484a218e22d7b49222dd20
Autor:
Silvia Frisia, Laura S. Weyrich, John Hellstrom, Andrea Borsato, Nicholas R. Golledge, Alexandre M. Anesio, Petra Bajo, Russell N. Drysdale, Paul C. Augustinus, Camille Rivard, Alan Cooper
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Contributions of iron sources to Southern Ocean CO2sequestration during the last glacial period remain uncertain. Here, based on the biogeochemical analysis of subglacial calcites, the authors propose Antarctic volcanism, via subglacial drainage of F
Externí odkaz:
https://doaj.org/article/86ce22f85bef4743829e3dc7dbbe6fd6
Autor:
Veronica Chiarini, Isabelle Couchoud, Russell Drysdale, Petra Bajo, Simone Milanolo, Silvia Frisia, Alan Greig, John Hellstrom, Jo De Waele
Publikováno v:
International Journal of Speleology, Vol 46, Iss 1, Pp 33-49 (2017)
Detailed petrographic observations have been coupled with trace element and δ13C - δ18O analyses in order to investigate their dynamics in two Holocene Bosnian speleothems. The potential of this multiproxy approach in providing a means to extract p
Externí odkaz:
https://doaj.org/article/64dd9d77562e4227b9af4f055e7515d9
Autor:
PATRICK MEISTER, SILVIA FRISIA
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 125, Iss 1 (2018)
Upper intra- to supratidal laminites in the Norian Dolomia Principale of the Brenta Dolomites (Northern Italy) commonly consist of aphanitic and partially peloidal dolomite previously interpreted as very early diagenetic or penecontemporaneous. Re-ex
Externí odkaz:
https://doaj.org/article/10b8ee8a2b764c8ba1ff7ca07588387b
Autor:
Silvia Frisia
Publikováno v:
International Journal of Speleology, Vol 44, Iss 1, Pp 1-16 (2015)
The systematic documentation of calcite fabrics in stalagmites and flowstones provides robustness to palaeoclimate interpretation based on geochemical proxies, but it has been neglected because it is difficult to transform crystal morphologies into n
Externí odkaz:
https://doaj.org/article/2b9223d98156428f86adff96be2df7e7
Autor:
SILVIA FRISIA BRUNI
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 96, Iss 1 (2017)
The shell of Thecospira tyrolensis (Loretz) is characterized by three distinct layers consisting of low Mg-calcite. The primary layer consists of microcrystalline calcite and it is often diagenetically altered. The secondary layer is composed of imbr
Externí odkaz:
https://doaj.org/article/ca44fc453c3147c08af2cd1fbe10d93b
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 98, Iss 1 (2017)
Stratigraphic and sedimentologic studies of the norian succession outcropping in rhe Lombardy Basin allowed the reconstruction of the paleogeographic and strucural evolution oi this area, 1) restricted lagoon and tidal flat are the most common deposi
Externí odkaz:
https://doaj.org/article/b78be3b6e62046ccbcfa0c0960708caa
Autor:
Patrick Meister, Silvia Frisia, István Dódony, Péter Pekker, Zsombor Molnár, Stephanie Neuhuber, Susanne Gier, Ivett Kovács, Attila Demény, Mihály Pósfai
Publikováno v:
Crystal Growth & Design. 23:3202-3212
Autor:
Liza McDonough, Pauline Treble, Andy Baker, Andrea Borsato, Silvia Frisia, Micheline Campbell, Gurinder Nagra, Katie Coleborn, Michael Gagan, Jian-xin Zhao, David Paterson
Stalagmites provide records of past changes in climate, vegetation, and surface events, which can be identified through variability in their chemical composition over time. This variability is the result of changes in surface environmental properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3032a0c4e4debca28d29c88768f2028
https://doi.org/10.5194/egusphere-egu23-10651
https://doi.org/10.5194/egusphere-egu23-10651