Results 121 to 130 of about 305,558 (359)

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

Bahaman patch reefs: Numerous and neglected

open access: yesThe Depositional Record, EarlyView.
Abstract Phanerozoic patch reefs are extensively studied because they are abundant and are potential reservoirs for valuable fluids. In contrast, geologic studies of modern reefs have largely focused on platform margins, leaving patch reefs comparatively neglected. What conditions favour patch‐reef development?
Paul Enos, Clay Robertson
wiley   +1 more source

The dynamic mechanism of north-south tectonic disparities in the Rakhine Offshore Basin of Myanmar

open access: yesFrontiers in Marine Science
The Rakhine Offshore Basin is located within an accretionary wedge in the trench setting of an active continental margin, exhibiting complex and dynamic characteristics.
Xuefeng Wang   +6 more
doaj   +1 more source

Structural interpretation of Mae Suai Basin, Chiang Rai Province, based on gravity data analysis and modelling

open access: yesHeliyon, 2019
The Mae Suai Basin, an intermountain basin in northern Thailand, became an area of interest in 2014 following the M6.1 earthquake that reactivated the ENE-WSW trending Mae Loa Fault. This fault is associated with the Cenozoic rifting. Terrestrial gravity
Suebchat Kanthiya   +2 more
doaj   +1 more source

Contributions of arid climate and hydrothermal fluid flow on sedimentation in saline‐alkaline lakes: Insight from the Ibar intramontane basin (Southern Serbia)

open access: yesThe Depositional Record, EarlyView.
The article demonstrates that brine was central for the supply of Ca and B to the studied saline lake. The ion transport occurred probably by thermal springs, while contributions from surface waters cannot be excluded. However, the saturation and syndepositional precipitation of Ca borates were initiated by an arid climate through evaporation, while ...
Nevena Andrić‐Tomašević   +8 more
wiley   +1 more source

Explorations into the formal structure of drainage basins [PDF]

open access: yesEarth Surface Processes and Landforms, 1994
AbstractEvery basin of higher than first order is drained by a channel network composed of two subnetworks. Their basins are separated by a drainage divide line, called the basin divider, which is the primary organizing feature of the main basin. Each basin of magnitude n contains n – 1 subnetworks of higher order, and is therefore organized by a set ...
openaire   +4 more sources

Geologic utility of improved orbital measurement capabilities in reference to non-renewable resources [PDF]

open access: yes
Spectral and spatial characteristics necessary for future orbital remote sensing systems are defined. The conclusions are based on the past decade of experience in exploring for non-renewable resources with reference to data from ground, aircraft, and ...
Marsh, S., Stewart, H.
core   +1 more source

Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Seismic Hazard Purposes [PDF]

open access: yes, 2012
The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown.
Borges, J. F.   +8 more
core   +1 more source

Insights into the genesis of thick halite in the Kuqa Depression (Tarim Basin, China): New mineralogical, lithological and geochemical evidence

open access: yesThe Depositional Record, EarlyView.
Halite thickness in Mbr 2 of the Kumugeliemu can reach 1000 m. The thick halite is associated with sedimentary rock with shallow water fabrics. The thick halite was formed in a shallow‐sea water environment. The ‘Multiple transgression‐salt‐forming’ model was established.
Peng Qin, Dakang Zhong, Zhonggui Hu
wiley   +1 more source

Mechanisms underlying differential helium enrichment in shale gas of varying structural styles in the southeastern Sichuan Basin

open access: yesMeitian dizhi yu kantan
ObjectiveShale gas reservoirs hold considerable helium reserves despite relatively low helium abundance, establishing them as a critical replacement for helium production growth.
Zhiyuan XIN   +3 more
doaj   +1 more source

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