Download Colorado River Origin and Evolution by Richard A. Young PDF

By Richard A. Young

This number of papers at the geology of the Grand Canyon and the Colorado River is an outgrowth of casual conversations between Colorado Plateau geologists over a interval of a number of years.

Show description

Read or Download Colorado River Origin and Evolution PDF

Similar hydrology books

Groundwater Modelling in Arid and Semi-Arid Areas

Arid and semi-arid areas face significant demanding situations within the administration of scarce freshwater assets lower than pressures of inhabitants, monetary improvement, weather switch, toxins and over-abstraction. Groundwater is usually an important water source in those parts. Groundwater types are commonplace globally to appreciate groundwater structures and to steer judgements on administration.

Innovative Subsurface Remediation. Field Testing of Physical, Chemical, and Characterization Technologies

Content material: box demonstrations of leading edge subsurface remediation and characterization applied sciences : creation / Mark L. Brusseau, John S. Gierke, and David A. Sabatini -- Surfactant choice standards for improved subsurface remediation / David A. Sabatini, Jeffrey H. Harwell, and Robert C. Knox -- better restoration of organics utilizing direct power ideas / T.

The Medieval Warm Period

The Medieval hot interval and the Little Ice Age are generally thought of to were the most important positive factors of the Earth's weather during the last one thousand years. during this quantity the problem of even if there fairly used to be a Medieval hot interval, and if this is the case, the place and while, is addressed. the categories of proof tested contain ancient files, tree jewelry, ice cores, glacial-geological files, borehole temperature, paleoecological facts and files of sun receipts inferred from cosmogenic isotopes.

Climate and Water: Transboundary Challenges in the Americas

Weather and Water: Transboundary demanding situations within the Americas explores the various ways in which weather, hydrology, and water source administration converge on the borders among jurisdictions and nations within the western Hemisphere. This publication is exclusive in targeting case reports of climate-hydrology-water source administration in different contexts in South, critical, and North the United States.

Extra resources for Colorado River Origin and Evolution

Sample text

150 I m O) •Ef 3 (0 Tli. CO u \\\ 100 a. ra What Is Apatite Fission-Track Thermochronology? tt i; I* (0 Q. Temperature and chemical composition control fission-track annealing Diamond Creek Lees Ferry • Naeser and others, 1989 OThis study a. < 40 in apatite. In a relatively stable geological environment where tempera­ 80 120 160 Distance-river mile 200 240 tures vary uniformly as a function of depth, apatite fission-track (AFT) age and track lengths decrease systematically with depth (Naeser, 1979; Fitzgerald and others, 1995).

Of the Claron Formation as latest middle Eocene (Eaton and Hutchison, 1995; Fiest and others, 1997; Eaton and others, 1999a). This unit is Claron Formation overlain by ash-flow tuffs and volcanic mudflows of the Mount Dutton The Claron Formation is present throughout the study area and ranges ers, 1994). Although there is uncertainty in the stratigraphic correlation in thickness from 165 m in the Pine Valley Mountains (Hintze, 1986) of this unit, it is stratigraphically and sedimentologically most similar Formation that has an Oligocene K-Ar age of 32 Ma (Rowley and oth­ to 640 m in the Table Cliff Plateau region (Sargent and Hansen, 1982).

In contrast, AFT ages of 45 to 75 Ma, as well as mean track lengths of 12 to 14 ]xm. 5 km to the west of the eastern mountain front. The age and track- 5. Laramide-age faulting has influenced the distribution of AFT ages in both areas. 5 \\m) data from Pikes Peak, as well as the sediment 6. 5 km in the Front Range (Pazzaglia phase of Laramide deformation. and Kelley 1998). The Colorado mineral belt signihcantly influenced both the structure The two areas are different in that the base of the pre-Laramide PAZ is and the thermal history of the central Front Range.

Download PDF sample

Rated 4.07 of 5 – based on 35 votes