Results 61 to 70 of about 733,308 (198)

Late Jurassic Carbon Isotope Excursion (Middle Oxfordian Event) Paces With Astronomical Forcing in the Northwestern Tethys

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang, Su Li, Xu Yao, Chuanlong Mou, Ulrich Heimhofer   +4 more
wiley   +1 more source

Laurasian Seaway History During the Early Jurassic From Quantitative Mineralogy and Detrital Zircon Dating

Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract The Laurasian Seaway comprises a N‐S oriented trans‐Pangaean corridor linking Tethys to the Boreal Sea during the Jurassic, and direction of water flow has been the subject of considerable debate. The Llanbedr (Mochras Farm) borehole, Cardigan Bay Basin, Wales, is a uniquely informative record that comprises an expanded deep‐marine silty ...
M. Jiang, S. P. Hesselbo, G. Pieńkowski, E. Krzemińska, J. B. Riding, A. Uchman, D. Salata, C. V. Ullmann   +7 more
wiley   +1 more source

A physiological approach to oceanic processes and glacial-interglacial changes in atmospheric CO2

Scientia Marina, 2008
One possible path for exploring the Earth’s far-from-equilibrium homeostasis is to assume that it results from the organisation of optimal pulsating systems, analogous to that in complex living beings. Under this premise it becomes natural to examine the
Josep L. Pelegrí
doaj   +1 more source

Orbital and Millennial‐Scale Cycles Paced Climate Variability During the Late Paleozoic Ice Age in the Southwestern Gondwana

Geochemistry, Geophysics, Geosystems, 2020
Orbital cycles are related to variations of Earth's orbit through time and exert profound control on glacial and interglacial climates due to changes in insolation.
M. V. L. Kochhann, J. Cagliari, K. G. D. Kochhann, D. R. Franco   +3 more
doaj   +1 more source

Assessing the Response of Blanket Peatlands to Climate Change Using the DigiBog Model and Winter's Concept of the “Hydrologic Landscape”

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Peatlands are important global carbon stores, but it is unclear whether they will continue as carbon sinks under future climates, or degrade, leaking carbon to the atmosphere. We used the DigiBog peatland development model to explore this question for a blanket peatland in Glen Affric, Scotland, investigating how topography and climate have ...
Andy J. Baird, Dylan M. Young, Jorge A. Ramirez, Peter J. Gill, Paul J. Morris, Nadav Peleg, Althea L. Davies, Richard Tipping, Eileen Tisdall   +8 more
wiley   +1 more source

The Impact of Milankovitch Cycles on Coal Accumulation and Its Implications for Carbon Cycling and Carbon Sequestration: A Case Study of the Pinghu Formation, Area A, Xihu Depression

Applied Sciences
The Eocene Pinghu Formation in the Xihu Depression, East China Sea Shelf Basin, is a key coal-bearing unit for offshore China’s petroleum exploration.
Yaning Wang, Yu Jiang, Shan Jiang, Yan Zhao   +3 more
doaj   +1 more source

Glacial Cycles and Milankovitch Forcing

, 2015
Using a recent conceptual model of the glacial-interglacial cycles we present more evidence of Milankovitch cycles being the trigger for retreat and forming of ice sheets in the cycles. This model is based on a finite approximation of an infinite dimensional model which has three components: Budyko's energy balance model describing the annual mean ...
openaire   +2 more sources

Changing Regional Land Surface Albedos Alter the Planetary Albedo During the Twenty‐First Century

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract The top‐of‐atmosphere (TOA) albedo controls the amount of solar energy absorbed by Earth and is influenced by the reflectivity of both the atmosphere and surface. With considerable changes in land use over the past few decades it is reasonable to question whether a perturbed surface albedo has influenced TOA albedo over the corresponding ...
Eirik Næsset Ramtvedt, Ryan M. Bright, Michael J. Gundale   +2 more
wiley   +1 more source

ASTRONOMICAL CALIBRATION OF THE UPPER LANGHIAN/LOWERSERRAVALLIAN RECORD OF RAS IL PELLEGRIN SECTION (MALTA ISLAND, CENTRAL MEDITERRANEAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2002
A high-resolution geochemical and micropaleontological data set has been obtained from the uppermost Langhian/lower Serravallian marly sediments of the Ras il Pellegrin section (Malta Island).
MARIO SPROVIERI, ANTONIO CARUSO, LUCA FORESI, ADRIANA BELLANCA, RODOLFO NERI, SALVATORE MAZZOLA, RODOLFO SPROVIERI   +6 more
doaj   +1 more source

Milankovitch cycle of continental deep-water fine-grained sedimentary rocks in the lower submember of Es3 of Well FY1 in Dongying Sag and its significance for shale oil exploration

Energy Exploration & Exploitation, 2023
China has recently faced significant difficulties in the exploitation of its shale oil and gas resources. An essential geological obstacle preventing the breakthrough of Chinese shale oil exploration is the precise identification of productive oil and ...
Wei Wu, Lin Zhang, Yibo Qiu, Guangxu Wang, Jing Yu   +4 more
doaj   +1 more source