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Articles 19051 - 19080 of 19480
Full-Text Articles in Earth Sciences
Mgrre_Thinsections_Mgrre_16_59, Mgrre
Mgrre_Thinsections_Mgrre_16_52, Mgrre
Mgrre_Thinsections_Mgrre_16_63, Mgrre
Mgrre_Thinsections_Mgrre_17_12, Mgrre
Mgrre_Thinsections_Mgrre_17_15, Mgrre
Mgrre_Thinsections_Mgrre_17_58, Mgrre
Mgrre_Thinsections_Mgrre_17_65, Mgrre
Mgrre_Thinsections_Mgrre_17_89, Mgrre
Mgrre_Thinsections_Mgrre_18_20, Mgrre
Mgrre_Thinsections_Mgrre_18_28, Mgrre
Mgrre_Thinsections_Mgrre_18_31, Mgrre
Mgrre_Thinsections_Mgrre_18_42, Mgrre
Mgrre_Thinsections_Mgrre_18_55, Mgrre
Mgrre_Thinsections_Mgrre_12_56, Mgrre
Mgrre_Thinsections_Mgrre_13_63, Mgrre
Mgrre_Thinsections_Mgrre_13_73, Mgrre
Mgrre_Thinsections_Mgrre_13_74, Mgrre
Mgrre_Thinsections_Mgrre_13_75, Mgrre
Mgrre_Thinsections_Mgrre_13_98, Mgrre
Mgrre_Thinsections_Mgrre_13_112, Mgrre
Mgrre_Thinsections_Mgrre_18_97, Mgrre
Mgrre_Thinsections_Mgrre_19_6, Mgrre
Mgrre_Thinsections_Mgrre_19_11, Mgrre
Mgrre_Thinsections_Mgrre_13_131, Mgrre
Mgrre_Thinsections_Mgrre_14_3, Mgrre
Mgrre_Thinsections_Moc_05_35, Mgrre
Mgrre_Thinsections_Moc_05_55, Mgrre
An Integrated Approach For The Assessment And Monitoring Of Land Deformation In The Riyadh City And Its Surroundings For Identifying The Controlling Factors, Abdulaziz Ibrahim Aljammaz
An Integrated Approach For The Assessment And Monitoring Of Land Deformation In The Riyadh City And Its Surroundings For Identifying The Controlling Factors, Abdulaziz Ibrahim Aljammaz
Dissertations
An integrated approach (remote sensing, field, geodesy, geology, and hydrogeology) was conducted to assess and monitor land deformation at Riyadh city and its surroundings. Two settings were investigated. The first, Jinadriyah area (1.5 km2), an urban area located east of Riyadh city, was selected to assess deformation associated with urbanization over desert lands. The second location was Al Kharj area (19,790 km2) to the south of Riyadh city, a reclaimed desert land that was selected to assess the deformation associated with agricultural groundwater extraction from fossil aquifers. My investigations revealed high subsidence rates (up to -30 …
Dolomite Stoichiometry As A Proxy For Fluid Chemistry, Cameron J. Manche
Dolomite Stoichiometry As A Proxy For Fluid Chemistry, Cameron J. Manche
Dissertations
The origin of massive dolomites is a contentious issue in geology. Because modern dolomite is rare, interpretation of ancient dolomites requires the use of proxy resources, most of which provide ambiguous information. High-temperature dolomite synthesis experiments have shown that dolomite stoichiometry, the degree of cation ordering, and reaction rate are controlled by Mg:Ca, temperature, molarity, and salinity of the formative solution. Thus, it is posited here that dolomite stoichiometry may be a useful proxy for fluid chemistry, as are stable isotope and trace element composition of ancient dolomites. High-frequency sample intervals (cm-scale) from the Cretaceous Upper Glen Rose Formation (Comanche …
Using Low-Flow Sampling Data To Estimate Hydraulic Conductivity In Aquifers, Joy Kiefer
Using Low-Flow Sampling Data To Estimate Hydraulic Conductivity In Aquifers, Joy Kiefer
Masters Theses
Hydrogeologists sample wells to test aquifer water quality and use slug tests to estimate aquifer permeability. Robbins et al. (2009) proposed a more efficient way to obtain the goals of the two tests—the use of low-flow sampling and the use of the resulting flow rate and drawdown data to estimate aquifer hydraulic conductivity (K). The Robbins et al. method calculates K by using the slope of the best fit line from the graph of flow rate vs. drawdown for all low-flow pumping data collected at a well. When the method was applied to low-flow data from four Kalamazoo, MI, it …