Dataset Identification:
Resource Abstract:
- description: New 1:24,000-scale geologic mapping along the Interstate-70 urban corridor in western Colorado, in support of
the State/ USGS Cooperative Geologic Mapping Project, is contributing to a more complete understanding of the stratigraphy,
structure, tectonic evolution, and hazard potential of this rapidly developing region. The 1:24,000-scale Vail East quadrangle
straddles the Gore fault system, the western structural boundary of the Gore Range. The Gore fault system is a contractional
structure that has been recurrently active since at least the early Paleozoic and marks the approximate eastern boundary of
the Central Colorado trough, a thick late Paleozoic depocenter into which thousands of meters of clastic sediment were deposited
from several uplifts, including the ancestral Front Range. The Gore fault was active during both the late Paleozoic and Upper
Cretaceous-lower Tertiary (Laramide) deformations. In addition, numerous north-northwest faults that cut the crystalline rocks
of the Gore Range were active during at least 5 periods, the last of which was related to Neogene uplift of the Gore Range
and formation of the northern Rio Grande rift. Early Proterozoic crystalline rocks underlie the high Gore Range, north and
east of the Gore fault system. These rocks consist predominantly of migmatitic biotite gneiss intruded by mostly granitic
rocks of the 1.667-1.750 Ma Cross Creek batholith, part of the 1,667-1,750 Ma Routt Plutonic Suite ( Tweto, 1987). Southwest
of the Gore fault, a mostly gently south-dipping sequence of Pennsylvanian Mimturn Formation, as thick as 1,900 m, and the
Permian and Pennsylvanian Maroon Formation (only the basal several hundred meters are exposed in the quadrangle)were shed
from the ancestral Front Range and overlie a thin sequence of Devonian and Cambrian rocks. The Minturn Formation is a sequence
of interlayered pink, maroon, and gray conglomerate, sandstone, shale, and marine limestone. The Maroon Formation is mostly
reddish conglomerate and sandstone. Glacial till of both the middle Pleistocene Bull Lake and late Pleistocene Pinedale glaciations
are well exposed along parts of the Gore Creek valley and its tributaries, although human development has profoundly altered
the outcrop patterns along the Gore Creek valley bottom. Landslides, some of which are currently active, are also mapped.;
abstract: New 1:24,000-scale geologic mapping along the Interstate-70 urban corridor in western Colorado, in support of the
State/ USGS Cooperative Geologic Mapping Project, is contributing to a more complete understanding of the stratigraphy, structure,
tectonic evolution, and hazard potential of this rapidly developing region. The 1:24,000-scale Vail East quadrangle straddles
the Gore fault system, the western structural boundary of the Gore Range. The Gore fault system is a contractional structure
that has been recurrently active since at least the early Paleozoic and marks the approximate eastern boundary of the Central
Colorado trough, a thick late Paleozoic depocenter into which thousands of meters of clastic sediment were deposited from
several uplifts, including the ancestral Front Range. The Gore fault was active during both the late Paleozoic and Upper Cretaceous-lower
Tertiary (Laramide) deformations. In addition, numerous north-northwest faults that cut the crystalline rocks of the Gore
Range were active during at least 5 periods, the last of which was related to Neogene uplift of the Gore Range and formation
of the northern Rio Grande rift. Early Proterozoic crystalline rocks underlie the high Gore Range, north and east of the Gore
fault system. These rocks consist predominantly of migmatitic biotite gneiss intruded by mostly granitic rocks of the 1.667-1.750
Ma Cross Creek batholith, part of the 1,667-1,750 Ma Routt Plutonic Suite ( Tweto, 1987). Southwest of the Gore fault, a mostly
gently south-dipping sequence of Pennsylvanian Mimturn Formation, as thick as 1,900 m, and the Permian and Pennsylvanian Maroon
Formation (only the basal several hundred meters are exposed in the quadrangle)were shed from the ancestral Front Range and
overlie a thin sequence of Devonian and Cambrian rocks. The Minturn Formation is a sequence of interlayered pink, maroon,
and gray conglomerate, sandstone, shale, and marine limestone. The Maroon Formation is mostly reddish conglomerate and sandstone.
Glacial till of both the middle Pleistocene Bull Lake and late Pleistocene Pinedale glaciations are well exposed along parts
of the Gore Creek valley and its tributaries, although human development has profoundly altered the outcrop patterns along
the Gore Creek valley bottom. Landslides, some of which are currently active, are also mapped.
Citation
- Title Geologic map of the Vail East quadrangle, Eagle County, Colorado.
-
- creation Date
2018-06-08T07:57:38.736160
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T23:07:11Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T23:07:11Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:604aa637-d4dc-4e3e-94bb-a42d3b322d25
Metadata record format is ISO19139 XML (MD_Metadata)