Results 51 to 60 of about 1,424 (201)

Constraints on Earth-Moon dynamical parameters from Eocene cyclostratigraphy

, 2022
International audienceThe theoretical prediction of Earth-Moon dynamics in deep geologic time is hampered by limited knowledge of Earth's past tidal dissipation and dynamical ellipticity.
Boulila, Slah, Hinnov, Linda, A., Hinnov, Linda   +2 more
core   +1 more source

REPRODUCIBILITY IN CYCLOSTRATIGRAPHY: INITIATING AN INTERCOMPARISON PROJECT

Geological Society of America Abstracts with Programs, 2017
The study of astronomical climate forcing and the application of cyclostratigraphy have experienced a spectacular growth over the last decades. In the field of cyclostratigraphy a broad range in methodological approaches exist. However, comparative study between the different approaches is lacking.
Sinnesael, Matthias, De Vleeschouwer, David, Zeeden, Christian, Claeys, Philippe   +3 more
openaire   +4 more sources

Late Eocene to Early Oligocene (36–26 Ma) Rock Magnetism and Magnetostratigraphy of IODP Site U1553, Southwestern Pacific: Defying the Challenges of Carbonate Dilution and Reductive Diagenesis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The late Eocene to early Oligocene is an intriguing Paleogene period in which the Earth climate state changed from Warmhouse to Coolhouse. Accurate age models are essential for investigating these climate transitions. The southwestern Pacific International Ocean Discovery Program (IODP) Site U1553, with its almost complete succession of the ...
Yang Zhang, Wanzhang Wang, Tilo von Dobeneck, Anna Joy Drury, Thomas Frederichs, Wei Yuan   +5 more
wiley   +1 more source

The Wunstorf Drilling Project: Coring a Global Stratigraphic Reference Section of the Oceanic Anoxic Event 2 [PDF]

Scientific Drilling, 2007
The Wunstorf drilling project aims at establishing a high resolution stable isotope record for the black shale succession (OAE 2) of the CTBI and developing this into a globally applicable high resolutionbio- and chemostratigraphic reference section ...
Markus Wilmsen, Jörg Mutterlose, Jochen Erbacher, the Wunstorf Drilling Scientific Party, Thomas Wonik   +4 more
doaj   +1 more source

High Geomagnetic Reversal Frequency During the Middle to Late Ediacaran (∼570 Ma) Constrained by Integrated Magneto‐ and Cyclostratigraphy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The Ediacaran–Cambrian (∼635–539 Ma) geomagnetic field is characterized by unusually high reversal rates and markedly weakened field strength. Estimates of these reversal frequencies can reveal key aspects of deep Earth dynamics and their potential influence on surface environments and early complex life.
J. W. L. Afonso, R. M. Rocha, D. R. Franco, N. B. Dos Santos, C. G. Leandro, P. Franceschinis, A. E. Rapalini, M. J. Arrouy, L. E. Gómez‐Peral, D. G. Poiré, S. Caetano‐Filho, H. D. Brito, R. I. F. Trindade   +12 more
wiley   +1 more source

Portable X‐ray fluorescence spectroscopy as a tool for cyclostratigraphy [PDF]

, 2019
Cyclostratigraphic studies are used to create relative and high‐resolution timescales for sedimentary successions based on identification of regular cycles in climate proxy data.
Kemp, David B., Saker-Clark, Matthew, Coe, Angela L., Matthew Saker‐Clark, Angela L. Coe, David B. Kemp   +5 more
core   +1 more source

Internal and External Modulation of Folding Rates With 104 to 105 Year Time Resolutions From Growth Strata, Pico del Aguila, Spain

Geochemistry, Geophysics, Geosystems, 2021
High‐resolution cyclostratigraphy in growth strata are used to reconstruct unsteady folding rates at the regional‐scale Pico del Aguila anticline, southern Pyrenees, to evaluate deformation modulation. Magnetic polarity stratigraphy was used to calibrate
David J. Anastasio, Kenneth P. Kodama, Josep M. Parés, Linda A. Hinnov, Bruce D. Idleman   +4 more
doaj   +1 more source

Pacing Early Mars Sedimentary Rock Formation

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Mars' sedimentary rock record documents past surface and/or near‐surface liquid water. However, paleoclimate models struggle to explain conditions warm enough for past liquid water. One hypothesis is transient warming by H2 ${\mathrm{H}}_{2}$‐CO2 ${\text{CO}}_{2}$ collision‐induced absorption (CIA) (H2 ${\mathrm{H}}_{2}$‐CO2 ${\text{CO}}_{2 ...
M. L. Turner, E. S. Kite
wiley   +1 more source

Iron–Phosphorus–Carbon Coupled Cycling in Lacustrine System of Ordos Basin During the Middle Triassic

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Widespread organic‐rich shales are associated with perturbations in productivity or preservation conditions; however, the major controlling factors, especially the phosphorus (P) and iron (Fe) interactions and their impacts on organic carbon burial in the paleolake ecosystem remain poorly understood.
Bo Wang, Rukai Zhu, Pengcheng Ju, Quanyou Liu, Weiming Xu, Peng Li, Wang Zhang, Xinping Liang   +7 more
wiley   +1 more source

Aligning and synchronization of MIS5 proxy records from Lake Ohrid (FYROM) with independently dated Mediterranean archives: implications for DEEP core chronology [PDF]

Biogeosciences, 2016
The DEEP site sediment sequence obtained during the ICDP SCOPSCO project at Lake Ohrid was dated using tephrostratigraphic information, cyclostratigraphy, and orbital tuning through the marine isotope stages (MIS) 15-1. Although this approach is suitable
G. Zanchetta, E. Regattieri, B. Giaccio, B. Wagner, R. Sulpizio, A. Francke, H. Vogel, L. Sadori, A. Masi, G. Sinopoli, J. H. Lacey, M. J. Leng, N. Leicher   +12 more
doaj   +1 more source