Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Philipp R, Heck"'
Autor:
Vinciane Debaille, Maria Schönbächler, Maria Valdes, Ryoga Maeda, Manu Poudelet, Steven Goderis, Philipp R. Heck, Veronica Tollenaar, Harry Zekollari, Philippe Claeys
Publikováno v:
Antarctic Record, Vol 67, Pp 12-27 (2023)
We provide a comprehensive overview of a reconnaissance expedition aimed at identifying new possible meteorite stranding zones in the surrounding of the Belgian Princess Elisabeth Antarctica (PEA) station in the Sør Rondane Mountains during the BELA
Externí odkaz:
https://doaj.org/article/b4f684dda6fc491c85b6ae972add372b
Autor:
Fabiany Herrera, Carol L. Hotton, Selena Y. Smith, Paula A. Lopera, April I. Neander, Jack Wittry, Yuke Zheng, Philipp R. Heck, Peter R. Crane, Michael P. D’Antonio
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
More than 20,000 siderite concretions from the Mazon Creek area of northern Illinois, United States are housed in the paleobotanical collections of the Field Museum. A large proportion contain fossil plants of Middle Pennsylvanian age that often have
Externí odkaz:
https://doaj.org/article/936d9c5c5b734321874a1c53b8d7e9d4
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 1, p 34 (2024)
An enhancement in the activity of the early young Sun resulting in a high charged particle flux has been invoked to explain excesses in spallation-induced nuclides in primitive planetary materials. Astronomical observations of energetic outbursts of
Externí odkaz:
https://doaj.org/article/cb40789446d04ad8bce536fbfd5bfbcb
Publikováno v:
Nature Astronomy. 6:1051-1058
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6a185d46de76c6af8f07a07a574b202
https://doi.org/10.1038/s41550-022-01746-4
https://doi.org/10.1038/s41550-022-01746-4
Autor:
Nicolas Dauphas, Timo Hopp, Grant Craig, Zhe J. Zhang, Maria C. Valdes, Philipp R. Heck, Bruce L. A. Charlier, Elizabeth A. Bell, T. Mark Harrison, Andrew M. Davis, Laure Dussubieux, Patrick R. Williams, Michael J. Krawczynski, Claudia Bouman, Nicholas S. Lloyd, Darren Tollstrup, Johannes B. Schwieters
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:2420-2441
Double-Wien filter-selection-aperture and hexapole-collision-cell technologies coupled to laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS/MS) enables in situ analysis of 87Sr variations produced by 87Rb decay.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abb5044574427e5a65270ed27ca70d2d
https://doi.org/10.1039/d2ja00135g
https://doi.org/10.1039/d2ja00135g
Publikováno v:
Marine Biodiversity. 53
How biotic interactions contribute to structuring deep-sea communities remains poorly known. An example of exploitation competition, in which over time one species dominates a habitat to preclude its use by competitors, is highlighted here. Sunken wo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06f0680a734d1871e72f757e91c26373
https://doi.org/10.1007/s12526-022-01306-z
https://doi.org/10.1007/s12526-022-01306-z
Autor:
Zhe Zhang, Fang-Zhen Teng, Corliss Kin I Sio, Jiyong Zhao, S. M. Aarons, Jennika Greer, Michael J. Krawczynski, Frank S. Spear, Hao Zeng, Kelsey B. Prissel, Xi Chen, Nicolas Dauphas, J. Y. Hu, N. X. Nie, Anat Shahar, Wenli Bi, Da Wang, Heng-Ci Tian, M. Roskosz, Philipp R. Heck, Esen E. Alp, Michael Y. Hu
Publikováno v:
Geochimica et Cosmochimica Acta. 302:18-45
Interpreting isotopic signatures documented in natural rocks requires knowledge of equilibrium isotopic fractionation factors. Here, we determine equilibrium Fe isotope fractionation factors between several common rock-forming minerals using a compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c33401bb1a48696ce1f0caf78abdcf01
https://doi.org/10.1016/j.gca.2021.03.014
https://doi.org/10.1016/j.gca.2021.03.014
Publikováno v:
Microscopy and Microanalysis. 27:2052-2054
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30dcee62000e80090c688a544e3f1d46
https://doi.org/10.1017/s1431927621007443
https://doi.org/10.1017/s1431927621007443
Autor:
Janaína N. Ávila, Reto Trappitsch, Henner Busemann, Andrew M. Davis, L. Kööp, Colin Maden, Philipp R. Heck, Frank Gyngard, Jennika Greer, Rainer Wieler
Publikováno v:
Proceedings of the National Academy of Sciences, 117 (4)
Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America
Significance Dating of interstellar dust directly with astronomical methods is not possible. Neither is dating based on the decay of long-lived radioactive nuclides, due to current analytical limitations and unknown initial isotopic compositions. Her
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb663de8abe42660f60f6e6cf451475f
https://doi.org/10.1073/pnas.1904573117
https://doi.org/10.1073/pnas.1904573117
Publikováno v:
Microscopy and Microanalysis. 26:3060-3062
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c9b133ba38db59f13ef7f0a4d15c7a
https://doi.org/10.1017/s1431927620023697
https://doi.org/10.1017/s1431927620023697