Zobrazeno 1 - 10
of 261
pro vyhledávání: '"M. Joachimski"'
Autor:
W. Adey, P. Lebednik, S. Hetzinger, R. S. Steneck, U. G. Wortmann, J. Halfar, B. Williams, M. Joachimski
Publikováno v:
Biogeosciences, Vol 8, Iss 1, Pp 165-174 (2011)
The oxygen isotopic composition and Mg/Ca ratios in the skeletons of long-lived coralline algae record ambient seawater temperature over time. Similarly, the carbon isotopic composition in the skeletons record δ13C values of ambient seawater dissolv
Externí odkaz:
https://doaj.org/article/a39afcdff8f04221892c3c109ac970eb
Autor:
A. Gardin, E. Pucéat, G. Garcia, J.-R. Boisserie, A. Euriat, M. M. Joachimski, A. Nutz, M. Schuster, O. Otero
Publikováno v:
Biogeosciences, Vol 21, Pp 437-454 (2024)
This study adopts a new approach describing palaeohydrology and palaeoclimates based on the interpretation of stable oxygen isotopes (δ18Op) recorded in fossil crocodilian teeth. They represent an archive of prime interest for tracking freshwater pa
Externí odkaz:
https://doaj.org/article/67e94c10cba74d33bd4961cdf11fa459
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract The oxygen isotope compositions of carbonate and phosphatic fossils hold the key to understanding Earth-system evolution during the last 500 million years. Unfortunately, the validity and interpretation of this record remain unsettled. Our c
Externí odkaz:
https://doaj.org/article/0507a4af0cad46448016b01487b51971
Autor:
Thomas J. Suttner, Erika Kido, Michael M. Joachimski, Stanislava Vodrážková, Monica Pondrelli, Carlo Corradini, Maria G. Corriga, Luca Simonetto, Michal Kubajko
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract The Middle Devonian Epoch, ~ 393–383 million years ago, is known for a peak in diversity and highest latitudinal distribution of coral and stromatoporoid reefs. About 388 million years ago, during the late Eifelian and earliest Givetian, c
Externí odkaz:
https://doaj.org/article/c460e4f684fa49d5b903f46e5b07ced1
Autor:
Alicja Wudarska, Michael Wiedenbeck, Olle Hints, Peep Männik, Aivo Lepland, Michael M. Joachimski, Frédéric Couffignal, Maria Rosa Scicchitano, Franziska D. H. Wilke
Publikováno v:
Estonian Journal of Earth Sciences, Vol 72, Iss 1, Pp 166-0 (2023)
Reliable deep-time environmental and climate reconstructions are needed to understand the drivers of Earthâs system evolution over geological time. Palaeozoic temperature estimates, including reconstructions of the climate change through the Ordovic
Externí odkaz:
https://doaj.org/article/dca4273684e44f368e33a6846a7031dd
Publikováno v:
Estonian Journal of Earth Sciences, Vol 72, Iss 1, Pp 151-0 (2023)
The Late Ordovician mass extinction occurred during an icehouse interval, accompanied by the glaciation of the supercontinent Gondwana, which was located at the South Pole at that time. As suggested by sequence stratigraphy of near- and far-field sed
Externí odkaz:
https://doaj.org/article/064bc8cd05364c8f964f9d4cecbfd965
Publikováno v:
Estonian Journal of Earth Sciences, Vol 72, Iss 1, Pp 144-0 (2023)
Oxygen isotopes from bioapatite (conodonts) have been used for several decades to reconstruct the Palaeozoic climate history. During the Ordovician, conodont-based δ18Ophos studies have revealed a general cooling trend throughout the system. The
Externí odkaz:
https://doaj.org/article/93ae9fd7b6b44d91a1de2f214172f35d
Autor:
Per Ahlberg, Frans Lundberg, Mikael Calner, Oliver Lehnert, Peter Dahlqvist, Michael M. Joachimski
Publikováno v:
Estonian Journal of Earth Sciences, Vol 70, Iss 1, Pp 18-35 (2021)
The Cambrian succession of the Tingskullen drill core from northern Ãland comprises Cambrian Series 2 and Miaolingian (Wuliuan Stage) siliciclastic strata. The major portion of the succession is represented by the Miaolingian Borgholm Formation, whi
Externí odkaz:
https://doaj.org/article/d9342c0a1ef4432194992551e9146527
Autor:
Rita Chirico, Nicola Mondillo, Maria Boni, Michael M. Joachimski, Maurizio Ambrosino, Yannick Buret, Angela Mormone, Luis Enrique Nazareno Beteta Leigh, Willy Huaman Flores, Giuseppina Balassone
Publikováno v:
Economic Geology. 117:1339-1366
The Florida Canyon Zn deposit in the Bongará Province of northern Peru consists of sulfide and nonsulfide mineralizations within dolomitized strata of the Triassic Chambará Formation, a member of the Triassic-Jurassic Pucará Group. The nonsulfide
Autor:
Hassina Louha, Giuseppina Balassone, Abdelhak Boutaleb, Maria Boni, Michael M. Joachimski, Nicola Mondillo
Publikováno v:
Minerals, Vol 11, Iss 7, p 687 (2021)
The ore deposits of Bou Caïd (Ouarsenis, Algeria) occur in Jurassic and Cretaceous sedimentary rocks. The barite and Pb-Zn (Fe, Cu, and F) ore deposits of Bou Caïd belong to vein- and karst-type. The mineralization is represented in the whole area
Externí odkaz:
https://doaj.org/article/eaf8f693ebb24fbda63413303b4c7a79