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السجلات المعروضة 21 -- 30 من 149
Characteristics and sources of anthropogenic and biogenic hydrocarbons in sediments from the coast of Qatar.
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Elsevier
, 2017 , Article)
Surface sediment samples from the coastal zone of Qatar were collected and analyzed to determine the characteristics, and sources of anthropogenic and biogenic hydrocarbons. The main compounds in these surface sediments ...
Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique
(
Nature Research
, 2020 , Article)
© 2020, The Author(s). This study demonstrates the use of ASTER data to map the siltation of the Al-Khod Dam constructed at the lower reaches of Samail Catchment area, north Muscat, Sultanate of Oman. In this study, the ...
Regional stratigraphy, facies distribution, and hydrocarbons potential of the Oligocene strata across the Arabian Plate and Western Iran
(
Springer Verlag
, 2019 , Article)
Major global events during the Oligocene epoch included a climatic change from warm “greenhouse” to a cooler “icehouse” that was accompanied by the onset of Antarctic glaciation. These events led to decline in water ...
Bryophyte cover and richness decline after 18 years of experimental warming in alpine Sweden.
(
Oxford University Press
, 2020 , Article)
Climate change is expected to affect alpine and Arctic tundra communities. Most previous long-term studies have focused on impacts on vascular plants, this study examined impacts of long-term warming on bryophyte communities. ...
Evaluation of the source rock potential of the Unyazah Formation (late Carboniferous-Early Permian) in Dukhan Field, Qatar
(
Taylor & Francis (Routledge)
, 2019 , Article)
Twenty samples were collected from the Unayzah Formation in three wells from Dukhan Field, Qatar. Many samples were of poor quality due to the low TOC content containing gas prone-kerogen type III and IV. The Rock-Eval ...
Trace element composition of size-fractionated suspended particulate matter samples from the Qatari Exclusive Economic Zone of the Arabian Gulf: the role of atmospheric dust
(
Copernicus Publications
, 2020 , Article)
We analyzed net-tow samples of natural assemblages
of plankton, and associated particulate matter, from
the Exclusive Economic Zone (EEZ) of Qatar in the Arabian
Gulf. Size-fractionated suspended particles were ...
Contribution of the Zubair source rocks to the generation and expulsion of oil to the reservoirs of the Mesopotamian Basin, Southern Iraq
(
Taylor & Francis
, 2019 , Article)
The huge quantities of oil and gas reserved in the fields of southern Iraq must be matched by enough source rocks that can generate and expel equivalent amounts of hydrocarbons. This study is an attempt to evaluate the ...
Geochemical investigation of Yamama crude oils and their inferred source rocks in the Mesopotamian Basin, Southern Iraq
(
Taylor & Francis
, 2019 , Article)
Ten oil samples from the Yamama reservoirs and ten extracts of purported source rocks from sixteen wells in the Mesopotamian Basin, Southern Iraq have been analyzed using GC, GC/MS and Stable Carbon Isotope. Yamama oils ...
Macrobenthos in the central Arabian Gulf: a reflection of climate extremes and variability
(
Springer International Publishing
, 2016 , Article)
The arid subtropical ecosystem of the central Arabian Gulf was used to explore the combined effects of low primary productivity, high salinities, and variable temperatures on the composition and structure of benthic ...
Mapping biodiversity conservation priorities for protected areas: A case study in Xishuangbanna Tropical Area, China
(
Elsevier
, 2020 , Article)
Global biodiversity is declining rapidly, posing a severe threat to ecosystem functions and services. Protected Areas (PAs) can be extremely effective in protecting biodiversity, but conservation gaps arise as a result of ...