Results 51 to 60 of about 733,308 (198)

Astrochronology and Petroleum Implications of the Chang 8 Member in the Longdong Area, Ordos Basin, China

open access: yesGeosciences
The Chang 8 Member in the Longdong area of the Ordos Basin hosts significant petroleum resources, demonstrating substantial potential for tight oil exploration and development.
Wei Wang   +7 more
doaj   +1 more source

Milankovitch Period Uncertainties and Their Impact on Cyclostratigraphy [PDF]

open access: yes, 2015
Astronomically calibrated cyclostratigraphy relies on correct matching of observed sedimentary cycles to predicted astronomical drivers such as eccentricity, obliquity and climate-precession. However the periods of these astronomical cycles, in the past,
Waltham, David
core   +1 more source

Temperature response of Mars to Milankovitch cycles [PDF]

open access: yesGeophysical Research Letters, 2008
On Mars annual mean surface temperature near ±60° latitude varies predominately with precession and is not closely related to annual mean insolation. Based on the last few million years of orbital history, the precession cycle dominates in a narrow latitude range 54°–65°, in which the margins of the two ice‐rich permafrost layers in each hemisphere ...
openaire   +1 more source

Sedimentary facies and stacking patterns of fluvio‐deltaic and ‐estuarine deposits from the Palaeoarchean Moodies Group in the Stolzburg Syncline (Barberton Greenstone Belt, South Africa)

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
Drillcore BASE‐5B from the Stolzburg Syncline, Barberton Greenstone Belt, reveals a coarsening‐upward, river‐dominated fluvio‐deltaic succession transitioning upward to a fining‐upward, tide‐dominated‐estuarine succession. Abstract Investigating fluvio‐marine depositional environments from early geological times is of great importance, as they provide ...
Sanway Mukhopadhyay   +5 more
wiley   +1 more source

Are Species Distribution Models That Use Climate Variables Suitable to Forecast the Changing Distribution of Freshwater Organisms?

open access: yesFreshwater Biology, Volume 71, Issue 9, September 2026.
ABSTRACT Species distribution models can be used to identify locations with environmental conditions suitable for populations in the past, present and future. However, climate variables commonly applied in species distribution models may be unsuitable for freshwater species because their explanatory power is difficult to assess.
David Carmelet‐Rescan   +5 more
wiley   +1 more source

Milankovitch cycles of terrestrial planets in binary star systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
The habitability of planets in binary star systems depends not only on the radiation environment created by the two stars, but also on the perturbations to planetary orbits and rotation produced by the gravitational field of the binary and neighbouring planets.
openaire   +3 more sources

Regional Variations in Sea Ice and Primary Productivity in the Bering Sea During Marine Isotope Stage 11

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Marine Isotope Stage (MIS) 11 (424–374 ka) has long been an analog for Holocene climate because it is the most recent interglacial period with similar orbital conditions. However, there is global and regional variability in the climate response to MIS 11 warmth.
N. S. Thompson, B. E. Caissie
wiley   +1 more source

Milankovitch Cycles for Potential Earth-analogs in Alpha Cen AB

open access: yes, 2022
The axial tilt of an Earthlike world influences its yearly-averaged radiative flux can vary for a given latitude. Such variations were realized nearly a century ago through Milankovitch Cycles that describe the frequency and extent of Earth’s ice ages ...
Quarles, Billy   +2 more
core  

Exo-Milankovitch Cycles. II. Climates of G-dwarf Planets in Dynamically Hot Systems [PDF]

open access: yes, 2018
Using an energy balance model with ice sheets, we examine the climate response of an Earth-like planet orbiting a G-dwarf star and experiencing large orbital and obliquity variations.
Armstrong, John   +18 more
core   +2 more sources

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

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