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Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
The Evolution Of Irrigated Arzyk-Shokh Soils Under Anthropogenic Factor, G. Yuldashev, U. Mirzaev
The Evolution Of Irrigated Arzyk-Shokh Soils Under Anthropogenic Factor, G. Yuldashev, U. Mirzaev
Scientific journal of the Fergana State University
This article deals with role of the anthropogenic factor in the process of modern evolutionary development of irrigated meadow saz soils in Central Fergana.
Holocene Climate Evolution Of Continental Western Eurasia Constrained By Stable-Isotope And Cation Geochemistry Of U-Th-Dated Speleothems And Meteogenic Travertine, Jonathan Lloyd Baker
Holocene Climate Evolution Of Continental Western Eurasia Constrained By Stable-Isotope And Cation Geochemistry Of U-Th-Dated Speleothems And Meteogenic Travertine, Jonathan Lloyd Baker
UNLV Theses, Dissertations, Professional Papers, and Capstones
Reliable reconstructions of global and regional climate during the Holocene (11,700 years ago to present) are vital to constraining the natural range of climate variability and testing state-of-the-art models, which seek to forecast the near- and long-term impact of anthropogenic greenhouse forcing. Much of continental Eurasia is still underrepresented, however, in geological proxy reconstructions of Holocene climate variability, and the vast majority of paleoclimate data only reflect conditions during peak summer months (JJA) or the growing season. The paucity of winter proxy data has therefore been cited as a possible explanation for the current mismatch between geological proxy-based and climate-model …
General Patterns Of Salinization And Desalinization Of Soils Of Cones Of Carrying Out Of The River Isfayram-Shakhimardansay, U. Mirzaev
Scientific journal of the Fergana State University
General patterns of salinization and desalinization of soils of cones of carrying out of the river Isfayram-Shakhimardansay
General Patterns Of Salinization And Desalinization Of Soils Of Cones Of Carrying Out Of The River Isfayram-Shakhimardansay, U. Mirzaev
Scientific journal of the Fergana State University
General patterns of salinization and desalinization of soils of cones of carrying out of the river Isfayram-Shakhimardansay
Lithofacies And Sequence Architecture Of The Upper Desert Creek Sequence (Middle Pennsylvanian, Paradox Formation) In The Greater Aneth Field, Southern Paradox Basin, Utah, Evan R. Gunnell
Theses and Dissertations
The Greater Aneth Buildup (GAB) is comprised of the 3rd-order middle Pennsylvanian (Desmoinesian) Desert Creek sequence of the Paradox Formation. A hierarchy of 4th- and 5th order, carbonate-dominated cycles comprise the Upper Desert Creek (UDC) 4th-order sequence. A SE to NW trending transect line, utilizing core and petrophysical data from six oil and gas wells (from SE to NW wells R-19, Q-16, O-16, J-15, K-430, E-313), revealed deposition of seven carbonate facies within four 5th-order parasequences in the UDC. While each of the seven carbonate facies are present across the transect line, the UDC parasequences are dominated by a shallow-water …
Characterization And Geochemistry Of Carbonate Caprock Associated With The Gypsum Valley Salt Wall, Paradox Basin, Colorado: Implications For Understanding Lateral Caprock Emplacement, Piper Lee Poe
Open Access Theses & Dissertations
On the northeastern side of Gypsum Valley salt wall in the Paradox Basin of Colorado, discontinuous exposures of layered gypsum and carbonate rocks were previously mapped as the contact between diapiric Paradox Formation and marine limestone of the Pennsylvanian Honaker Trail Formation. Utilizing new and existing mapping, petrographic and isotopic geochemical analyses, this study reinterprets this zone to represent lateral gypsum and carbonate caprock that formed in the Triassic during passive rise of the Gypsum Valley salt wall. Gypsum Valley lateral carbonate caprock can be distinguished from Pennsylvanian and Permian depositional carbonate strata exposed elsewhere on the salt wall by …
Combining Observations Of Soils And Streams To Investigate Trends Caused By Reduced Acid Depositon In The Sleepers River Watershed, Jesse Armfield
Combining Observations Of Soils And Streams To Investigate Trends Caused By Reduced Acid Depositon In The Sleepers River Watershed, Jesse Armfield
Graduate College Dissertations and Theses
Acid deposition forms when emission-derived sulfur dioxide and nitrogen oxides interact with precipitation and was particularly severe in the northeastern US. Effects of acid deposition include declining soil quality due to low pH and base cation leaching, which subsequently altered the composition of soil solution, ground water (GW) and eventually stream water. Because of the high buffering capacity of carbonates, watersheds underlain by carbonate rich rocks have received limited attention in acid deposition studies, however, carbonate weathering by strong anthropogenic acids can increase atmospheric CO2 levels.
Emission reductions due to the Clean Air Act and Amendments has led to a …