Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Vamsi Ganti"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 20, Pp n/a-n/a (2024)
Abstract Fluvial cross strata are fundamental sedimentary structures that record past flow and sediment transport conditions. Bedform preservation can be significantly influenced by the presence of larger‐scale topographic features that cause spati
Externí odkaz:
https://doaj.org/article/8fc21604a7784c4bb6a9089746db4fca
Autor:
Robert C. Mahon, Vamsi Ganti, Madeline M. Kelley, Debsmita Das, Victoria Sanchez, Giancarlo Portocarrero
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 15, Pp n/a-n/a (2024)
Abstract River bedforms and their deposits—fluvial cross strata— respond to floods. However, it is unclear if all floods are equally represented in cross strata. Here, using a series of physical experiments in which bedforms were subjected to equ
Externí odkaz:
https://doaj.org/article/235f25d754ba4ee0b2ee38fa1dd4a4f4
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract Source‐to‐sink transfer of sediment and organic carbon (OC) is regulated by river mobility. Quantifying trends in river mobility is, however, challenging due to diverse planform morphologies (e.g., meandering, braided) and measurement me
Externí odkaz:
https://doaj.org/article/aba4b287079f470d917dd965615b1f4d
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 11, Pp n/a-n/a (2024)
Abstract Bedform evolution and preserved cross strata are known to respond to floods. However, it is unclear if autogenic dynamics mask the flood signal in bedform evolution and cross strata. To address this, we characterize the temporal structure of
Externí odkaz:
https://doaj.org/article/d8477f5b29ff4d74930c9dc3aca5bf2e
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023)
Abstract A Silurian shift in fluvial stratigraphic architecture, coincident with the appearance of terrestrial vegetation in the fossil record, is traditionally cited as evidence for exclusively shallow, braided planforms in pre‐vegetation rivers.
Externí odkaz:
https://doaj.org/article/7056a3988abd4d648507b41129b345c3
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 18, Pp n/a-n/a (2022)
Abstract Fluvial cross strata are depositional products of bedform migration that record formative flow and sediment transport conditions on planetary bodies. Bedform evolution varies with transport stage even under constant flow depths, but our unde
Externí odkaz:
https://doaj.org/article/c6a167fffa004807beceb1bc53793107
Autor:
Sam Brooke, Austin J. Chadwick, Jose Silvestre, Michael P. Lamb, Douglas A. Edmonds, Vamsi Ganti
Publikováno v:
Science. 376:987-990
Rivers can abruptly shift pathways in rare events called avulsions, which cause devastating floods. The controls on avulsion locations are poorly understood as a result of sparse data on such features. We analyzed nearly 50 years of satellite imagery
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c1a527347e181bf5a4c7b04a832e47c
https://doi.org/10.1126/science.abm1215
https://doi.org/10.1126/science.abm1215
Publikováno v:
Geology. 49:1038-1043
Reconstruction of active channel geometry from fluvial strata is critical to constrain the water and sediment fluxes in ancient terrestrial landscapes. Robust methods—grounded in extensive field observations, numerical simulations, and physical exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c7b5417573fcf6a0aab447729477223
https://doi.org/10.1130/g48729.1
https://doi.org/10.1130/g48729.1
Autor:
Jan de Leeuw, Sarah S. Zeichner, Vamsi Ganti, Michael P. Lamb, Woodward W. Fischer, Justin Nghiem, Nina Takashima
Publikováno v:
Science. 371:526-529
What matters for mudrocks Rock such as slate and shale, which form from mud, suddenly start appearing in the geologic record around 450 million years ago. Their appearance at about the same time as certain plants seems to implicate plant roots in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c83aac13211085b6f1292500410ef67
https://doi.org/10.1126/science.abd0379
https://doi.org/10.1126/science.abd0379
Autor:
Min Sub Sim, Asmeret Asefaw Berhe, Louis A. Derry, Vamsi Ganti, Irasema Alcántara-Ayala, Alice A. Horton
Publikováno v:
Nature Reviews Earth & Environment. 2:15-20
To celebrate the first anniversary of Nature Reviews Earth & Environment, we asked six researchers investigating Earth surface processes to outline notable developments within their discipline and provide thoughts on important work yet to be done.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e4bd291642d8786e4ddc90c5b68fd7b
https://doi.org/10.1038/s43017-020-00125-9
https://doi.org/10.1038/s43017-020-00125-9