Now showing items 141-150 of 158
- . . .
Diagenesis and geochemistry of the Lower Permian Ingleside Formation, Owl Canyon area, Larimer County, Colorado
The purpose of this study is to determine the diagenetic history and timing of hydrocarbon migration in the Lower Permian Ingleside Formation as revealed in the Ingleside roadcut at Owl Canyon area, Colorado. The studied ...
Hydrologic characterization of upper Permian-Cenozoic sedimentary strata of Larimer County: prospective aquifer storage and recovery targets
Providing adequate water storage is an on-going problem along the northern Colorado Front Range. This study compiles existing hydrogeological data from water wells to identify potential ASR sites in eastern Larimer County, ...
Numerical modeling and hydrochemical analysis of the current and future state of seawater intrusion in the Todos Santos aquifer, Mexico
Author(s):Fichera, Marissa M.
The Todos Santos aquifer, Baja California Sur, Mexico, provides the sole source of freshwater to the town of Todos Santos, and is utilized for domestic and agricultural needs crucial to the town's economy. The region is ...
Controls on and trends in sediment and particulate organic matter storage by instream wood in north Saint Vrain Creek, Colorado
Sediment and particulate organic matter (POM) retained by wood within the bankfull channel were evaluated for 58 stream reaches at the headwaters of North Saint Vrain Creek, Colorado. Wood-induced storage in headwater ...
Seeing the river through the trees: using cottonwood dendrochronology to reconstruct river dynamics in the Upper Missouri River Basin
Author(s):Schook, Derek Michael
Understanding the past is critical to preparing for the future, especially regarding rivers where extreme events and gradual changes underlie modern forms and processes. Both biological and human communities rely on the ...
Snow persistence and hydrologic response across the intermittent-persistent snow transition
Author(s):Hammond, John Christopher
In mountainous regions and high latitudes, seasonal snow is a critical component of the surface energy balance and hydrologic cycle. Snowpacks have been declining in many mountain regions, but the hydrologic responses to ...
Petrology and geochemistry of alteration types within a multiphase system and implications for the presence of a porphyry root, Harrison Pass Pluton, Nevada
To view the abstract, please see the full text of the document.
Structural evolution of the Potosí uplift, Sierra Madre Oriental, northeastern Mexico
Author(s):Williams, Stewart Alexander
The Jurassic Minas Viejas Formation is host to a Late Cretaceous to early Paleogene-aged décollement in the Sierra Madre Oriental, Mexico. The Minas Viejas Formation is dominated by rheologically-weak evaporite that ...
Analysis of flexural evolution of the lithosphere over the past 4.6 Ma around Ross Island, West Antarctica
Ross Island is in the southern Victoria Land Basin along the western margin of the West Antarctic Rift System. Episodic volcanism since ca. 4.6 Ma produced a discontinuous sedimentary moat around the island coeval with ...
Analyzing post-flood recovery after an extreme flood: North St. Vrain Creek, CO
Author(s):Eidmann, Johanna S.
Assessing the ongoing sediment remobilization and deposition following an extreme flood is important for understanding disturbance response and recovery, and for addressing the challenges to water resource management. From ...