SOLUTION: West Virginia University Alamosa Basin Hydrological Cycle Report

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Running Head: ALAMOSA BASIN REPORT

Alamosa Basin Report
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ALAMOSA BASIN REPORT
INTRODUCTION
Basins portray an redundant role in maintaining the hydrological cycle. The San Luis Basin
plays an dignified role in draining the Southern Rocky Mountains and providing a rich
unwandering courage in the Closed Basin Center. This contrivance investigates the geological and
hydrological enhancement of the Alamosa Basin. However, the chronology of unwandering events has
affected the virtue of breathe-into course of deportment course in the basin. The contrivance accomplish so investigate
the concontinuity of present irrigation practices in the forthcoming aquifer conditions in the void.
GEOLOGICAL SETTING

The San Luis Dip (SLV) in southern Colorado is a senior structural and physiographic
element of The Rio Grande Rift. The San Luis Dip (SLV) stretches 160km North-South and
75 km distant after a while an mean pedestal improvement of ca. 2440m. The Alamosa Basin is a sub-basin of
the SLV, where the dip stretches 70km distant. The tectonic, strata, and erection are integrated
from the subdeportment facts that has been obtained from geophysical surveys and borehole samples
shown in Siebenthal’s exertion. From a standpoint, the physiographic remuneration is justified to
define the Alamosa Basin from the foremost accessible town, Alamosa. The Alamosa Basin is
roughly triangular-shaped, stretching betwixt three geographical points enclosureing the San Juan
Mountains on the West and Sangre De Cristo ramble from the southeast; Monte Vista (37.6094, -

ALAMOSA BASIN REPORT
106.1483), Alamosa (37.4814, -105.8794) and Lobatos (37.0786, -105.7569).

Figure 1: unconcealed disunion of SLV obtained from Upson (1939).

Figure 2: geologic exception of the Alamosa Basin

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ALAMOSA BASIN REPORT

Figure 3: physiographic subdivisions of San Luis Dip (Upson, 1939).
HYDROGEOLOGY
1. Cantankerous exception after a while an explication that justifies your interpretations and describes
the geologic order.
The unconcealed of the Alamosa Basin can be implicit from the discussions of Leonard and
Watts (1989), which contribute the explication of dip deposits. At the North end of the SLV, the
Alamosa Basin is divided into Eastern Western Basins, the Baca, and Monte Vista Grabens. The
maximum deposit is environing 10,000ft in the Western sub-basin, environing 5,400ft aggravate Alamosa horst
and 19,000ft in the Eastern Sub Basin. The basin from the North is hydraulically divided from
Costilla plains by the San Luis Hills, which so acts as the barriers of the mawkish course. The
basin unmeasured basin intervening of tertiary-volcanic rocks and alluvial sedimentary rocks obtained
from the oldest continuity of Eocene and Oligocene in Vallejo shape as shown by the basins
clay, sand, and gravel in the Western sunder. The basin-fill deposits of the Santa Fe and Los Pinos

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ALAMOSA BASIN REPORT
formations so ramble from Pliocene and Oligocene age rambles. The eastern enclosure of the San
Juan Mountains so consists of tuffaceous representative and embedded volcanistic sandstone that
consists of sandy gravel. The deposits of sand, clay, and silt of Fluvial, Lacustrine, and Eolian
origin unconcealedly conceive the topographic course of the basin.

Figure4 (a): unconcealed cantankerous exception

ALAMOSA BASIN REPORT

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Figure 4 (a): Alamosa basin geology (Harmon, 1989).
2. Description of the aquifer(s): calculate, disposal, thickness, lithology. This should
be accompani...


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