Zobrazeno 1 - 5
of 5
pro vyhledávání: '"K. H. Freeman"'
Autor:
S. K. E. Goulden, N. Ohkouchi, K. H. Freeman, Y. Chikaraishi, N. O. Ogawa, H. Suga, O. Chadwick, B. Z. Houlton
Publikováno v:
Biogeosciences, Vol 16, Pp 3869-3882 (2019)
Nitrogen (N) availability influences patterns of terrestrial productivity and global carbon cycling, imparting strong but poorly resolved feedbacks on Earth's climate system. Central questions concern the timescale of N cycle response to elevated CO2
Externí odkaz:
https://doaj.org/article/49e4a8717a65468392d03049df63aefd
Autor:
T. J. Bralower, J. Cosmidis, M. S. Fantle, C. M. Lowery, B. H. Passey, S. P. S. Gulick, J. V. Morgan, V. Vajda, M. T. Whalen, A. Wittmann, N. Artemieva, K. Farley, S. Goderis, E. Hajek, P. J. Heaney, D. A. Kring, S. L. Lyons, C. Rasmussen, E. Sibert, F. J. Rodríguez Tovar, G. Turner‐Walker, J. C. Zachos, J. Carte, S. A. Chen, C. Cockell, M. Coolen, K. H. Freeman, J. Garber, M. Gonzalez, J. L. Gray, K. Grice, H. L. Jones, B. Schaefer, J. Smit, S. M. Tikoo
Publikováno v:
AGU Advances, Vol 1, Iss 4, Pp n/a-n/a (2020)
Abstract An expanded sedimentary section provides an opportunity to elucidate conditions in the nascent Chicxulub crater during the hours to millennia after the Cretaceous‐Paleogene (K‐Pg) boundary impact. The sediments were deposited by tsunami
Externí odkaz:
https://doaj.org/article/e259b8506e96472ea80398ad2d61c1c2
Autor:
P. A. Baker, S. C. Fritz, C. G. Silva, C. A. Rigsby, M. L. Absy, R. P. Almeida, M. Caputo, C. M. Chiessi, F. W. Cruz, C. W. Dick, S. J. Feakins, J. Figueiredo, K. H. Freeman, C. Hoorn, C. Jaramillo, A. K. Kern, E. M. Latrubesse, M. P. Ledru, A. Marzoli, A. Myrbo, A. Noren, W. E. Piller, M. I. F. Ramos, C. C. Ribas, R. Trnadade, A. J. West, I. Wahnfried, D. A. Willard
Publikováno v:
Scientific Drilling, Vol 20, Pp 41-49 (2015)
This article presents the scientific rationale for an ambitious ICDP drilling project to continuously sample Late Cretaceous to modern sediment in four different sedimentary basins that transect the equatorial Amazon of Brazil, from the Andean forela
Externí odkaz:
https://doaj.org/article/994fc903baf747e9b5c1c3de3e96f232
Publikováno v:
Geobiology. 9(4)
Organic biomarkers in marine sedimentary rocks hold important clues about the early history of Earth's surface environment. The chemical relicts of carotenoids from anoxygenic sulfur bacteria are of particular interest to geoscientists because of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::096ea60d8e35cfff63c051fc9b9f482d
https://pubmed.ncbi.nlm.nih.gov/21682840
https://pubmed.ncbi.nlm.nih.gov/21682840
Autor:
R F, Dias, K H, Freeman
Publikováno v:
Analytical chemistry. 69(5)
Solid-phase microextraction (SPME) was used to facilitate the measurement of stable carbon isotope compositions (at natural abundance) of six organic compounds representing four compound classes in aqueous solution. Toluene, methylcyclohexane, hexano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f062f5044efc837be7dae5b1869b4a3d
https://pubmed.ncbi.nlm.nih.gov/21639231
https://pubmed.ncbi.nlm.nih.gov/21639231