Results 61 to 70 of about 1,479 (206)

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

(Appendix A) Precession cycle number cyclostratigraphy for DSDP Site 80-550

, 2009
(Appendix A) Precession cycle number cyclostratigraphy for DSDP Site 80 ...
Westerhold, Thomas, Thomas Westerhold (6960026)   +1 more
core   +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

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

Identification of Astronomical Cycles in Upper Cretaceous Sifangtai Formation and Constraints on Depositional Age of Uranium Mineralized Sandstones in Qian’an Area of Songliao Basin

Yuanzineng kexue jishu
Cyclostratigraphy is widely applied in establishing high-precision sequence stratigraphic frameworks and astronomical time scales, making it an important field in the quantitative study of sedimentology.
WANG Junxian1, 2, ,  LI Ziying1, 2, ,  XING Zuochang1, 2,  LIU Jungang1, 2,  SHI Qingping1, 2,  TIAN Mingming1, 2,  JIA Licheng1, 2
doaj   +1 more source

Geological evidence reveals a staircase pattern in Earth’s rotational deceleration evolution [PDF]

Proc Natl Acad Sci U S A
International audienceAstronomically forced climate change is recorded in the Earth's cyclic sedimentary record ("cyclostratigraphy"). These records can inform on past dynamics of the Solar system and Earth rotation. Here, we reconstruct the evolution of
Huang H, Ma C, Laskar J, Sinnesael M, Farhat M, Hoang N, Gao Y, Zeeden C, Zhong H, Hou M, Wang C.   +10 more
europepmc   +2 more sources

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

The Cyclostratigraphy Intercomparison Project (CIP): consistency, merits and pitfalls

, 2019
Cyclostratigraphy is an important tool for understanding astronomical climate forcing and reading geological time in sedimentary sequences, provided that an imprint of insolation variations caused by Earth’s orbital eccentricity, obliquity and/or ...
Laurin, J, Pas, D, Kemp, DB, Li, M, Ruhl, M, Pälike, H, Da Silva, AC, Montanari, A, Liebrand, D, Sinnesael, M, Meyers, SR, Hinnov, LA, Drury, AJ, De Vleeschouwer, D, Hudson, AJL, Nohl, T, Thibault, N, Wouters, S, Gambacorta, G, Vahlenkamp, M, Monkenbusch, J, Wu, H, Hilgen, FJ, Claeys, P, Ma, C, Valero, L, Lantink, ML, Dinarès-Turell, J, Zeeden, C, De Winter, NJ, Batenburg, SJ   +30 more
core   +2 more sources

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