Results 181 to 190 of about 85,153 (320)

Carbonate microfacies and transgressive‐regressive sequences of Oxfordian shallow‐water limestones (Korallenoolith, Lower Saxony Basin)

open access: yesThe Depositional Record, EarlyView.
The Bisperode section is one of the most expanded and complete sections with shallow‐marine Oxfordian strata in the LSB. This study provides a reference record for shallow‐marine settings and allows for the correlation of the strata from the LSB with Oxfordian deposits distributed elsewhere in the world.
Deyan Zhang   +3 more
wiley   +1 more source

Eustatic and tectonic controls on mixed carbonate‐siliciclastic ramp deposits in the South Pyrenean foreland basin: The Eocene Alveolina Limestone

open access: yesThe Depositional Record, EarlyView.
The lower Eocene Alveolina Limestone records the global early Eocene transgression, but is equally affected by tectonic movements of the Montsec active thrust located in its hangingwall. Tectonic movements and the early Eocene transgression facilitated a detrital provenance shift in the southern Pyrenean foreland from a southern provenance in the ...
Stefan Schröder   +3 more
wiley   +1 more source

Effect of Wind-Driven Accretion on Planetary Migration

open access: yes, 2020
Can wind-driven accretion modify planetary migration? Planetary migration plays an important role in planet formation models and statistics of observed exoplanets. So far, the theory of planetary migration has focused on the interaction of one or more planets with an inviscid or viscously evolving gaseous disk.
openaire   +2 more sources

Damage modeling of CO2 injection well interfaces under coupled thermal, hydraulic and mechanical behavior

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper presents an investigation of CO2 injection well damage evolution considering different injection temperatures and the presence of a pre‐existing defect. The main outcome is that the accurate prediction of well leakage risk requires characteristics such as initial defects to be understood and represented in any modeling efforts. Abstract This
Lee J. Hosking, Xiangming Zhou
wiley   +1 more source

Scalogram habitat measures as predictors of bird abundance

open access: yesEcography, EarlyView.
Birds select habitat characteristics, such as variability in habitat structure, across multiple spatial scales (grain and extent). Measuring habitat variability at multiple scales can better capture factors that influence avifauna communities than focusing on one scale only. One valuable tool in assessing habitat heterogeneity is the cumulative dynamic
Eduarda Silveira   +8 more
wiley   +1 more source

Testing the core–periphery hypothesis: a standardised multi‐phylum assessment of genetic diversity of marine coastal species

open access: yesEcography, EarlyView.
The core–periphery hypothesis (CPH) predicts that genetic diversity is greatest at the centre and lowest at the edges of a species' distribution because genetic diversity is a function of a species' abundance, which is also expected to be greatest at the centre and lowest at the edges of the distribution. Variants of the CPH include the ‘Ramped North' (
Daniel Cárcamo   +2 more
wiley   +1 more source

Shared temporal increases in bill size among songbirds of the San Francisco Bay Area provide evidence for different seasonal selective pressures

open access: yesEcography, EarlyView.
Museum specimens offer a unique and powerful tool for understanding the impact of anthropogenic change on populations over time. Morphological traits can be impacted by many different environmental variables that are difficult to separate from one another as potential driving factors.
Jenna D. Krugler   +2 more
wiley   +1 more source

The geography of connectivity shapes plant endemism hotspots

open access: yesEcography, EarlyView.
The high biodiversity in mountains is attributed to species accumulation from dispersal, high habitat heterogeneity and local speciation. Landscape connectivity thereby influences colonization and speciation processes, making its net effect on biodiversity challenging to understand.
Zili Yuan   +6 more
wiley   +1 more source

Giant Planet Formation by Core Accretion

open access: yes, 2007
We present a review of the standard paradigm for giant planet formation, the core accretion theory. After an overview of the basic concepts of this model, results of the original implementation are discussed.
Alibert, Yann   +3 more
core  

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