Results 51 to 60 of about 6,210 (215)
A spatial-temporal analysis of section 404 wetland permitting in Texas and Florida: Thirteen years of impact along the coast [PDF]
, 2008 Over the past 200 years, an estimated 53% (about 47 million ha) of the original wetlands in the conterminous United States have been lost, mainly as a result of various human activities.
Bernhardt, Sarah P. +3 more
core +1 more source
The Depositional Record, Volume 12, Issue 2, April 2026.During the Late Permian, the rise of the Gondwanides Belt trapped marine waters, giving birth to a vast megalake. This lake shifted between overfilled, balanced‐fill and underfilled stages that are recorded by high‐frequency accommodation changes, while meteorological seiches shaped the sedimentary dynamic and produced heterolithic beds.
B. Christofoletti +6 more
wiley +1 more source
Mg isotope fractionation during microbial dolomite formation in the Khor Al‐Adaid sabkha, Qatar
The Depositional Record, Volume 12, Issue 2, April 2026.Modern sabkha sediments from southern Qatar show ca. 1‰ Ca isotope fractionation between pore water, organic matter and dolomite, supporting microbial mediation. In contrast, minimal Mg isotope fractionation and inorganic‐like dolomite δ26Mg indicate that microbial influence is indirect, expressed through subtle pore water shifts driven by Mg ...
Michael Tatzel +10 more
wiley +1 more source
Revista Mexicana de Ciencias Geológicas, 2018 The Deccan infra- and intertrappeans volcano-sedimentary sequences have been considered as terrestrial to fluvio-lacustrine deposits. Presence of planktonic foraminifera and brackish water ostracods in the Jhilmili basal Danian intertrappean beds ...
Ashu Khosla
doaj +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.Abstract Carbon fluxes to Earth's atmosphere are reflected in the carbon isotope composition of atmospheric CO2 (δ13Catm). δ13Catm is used to track past changes to the global carbon cycle and is a variable in many paleoclimate proxies. However, existing δ13Catm proxy records derived from marine carbonates are relatively low‐resolution prior to the ...
Katarina A. Keating, Nathan D. Sheldon
wiley +1 more source
Drones, 2022 Wetlands play a critical role in maintaining stable and productive ecosystems, and they continue to be at heightened risk from anthropogenic and natural degradation, especially along the rapidly developing Atlantic Coastal Plain of North America. As such,
Narcisa Gabriela Pricope +4 more
doaj +1 more source
Palaeoclimate changes in the Afyon province, Sw-Turkey, during the Middle-Late Pleistocene: Signals from calcareous tufa pollen and stable isotope records [PDF]
, 2018 The calcareous tufas of Sarikavak located in the northern part of NE-SW trending Acigöl Graben in SW-Turkey are investigated in detail. For this aim, various analyses (stable isotopes, U/Th dating, palynology) have been carried out on samples obtained ...
Kayseri-Özer, M.S., Tagliasacchi, Ezher
core +1 more source
The Depositional Record, Volume 12, Issue 1, February 2026.This study reveals that legacy paper mill sludge can generate tufa deposits through calcium leaching and atmospheric CO2 interaction, acting as a carbon sink. The findings highlight its potential for low‐cost carbon sequestration and sustainable waste management.
Md Jahangir Alam, John M. MacDonald
wiley +1 more source
GeogacetaThe stable isotopes (C and O), bulk mineralogy and sedimentary facies types of the Miocene lacustrine palustrine carbonates of the Cucho Section (Miranda-Trebiño basin, N Iberia) are studied.
Zuriñe Larena +3 more
doaj +1 more source
Ecological Indicators, 2021 Wetlands are hotspots for various biogeochemical processes, including denitrification. Despite its ecological and economic importance, denitrification has proven difficult to measure.
Jacob M. Dybiec +3 more
doaj +1 more source