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Pajarito Fault

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Journal Article
Journal: Geosphere
Published: 01 June 2009
Geosphere (2009) 5 (3): 252–269.
...Claudia J. Lewis; Jamie N. Gardner; Emily S. Schultz-Fellenz; Alexis Lavine; Steven L. Reneau; Susan Olig Abstract The seismically active Pajarito fault system (PFS) of northern New Mexico, United States, is a complex zone of deformation made up of many laterally discontinuous faults and associated...
FIGURES | View All (11)
Journal Article
Journal: GSA Bulletin
Published: 01 February 1983
GSA Bulletin (1983) 94 (2): 192–205.
...MATTHEW P. GOLOMBEK Abstract The Pajarito fault zone forms the western border of the Velarde graben, the presently active, central subbasin of the Española basin section of the Rio Grande rift in north-central New Mexico. The fault zone is a north-northeast-trending zone of predominantly down...
Journal Article
Journal: Geology
Published: 01 January 1981
Geology (1981) 9 (1): 21–24.
...Matthew P. Golombek Abstract The central Velarde graben is the active subbasin of the Española basin section of the Rio Grande rift in north-central New Mexico. The Velarde graben is bounded on the west, in the Jemez volcanic field, by the Pajarito fault zone. This fault zone has produced a steep...
Series: GSA Special Papers
Published: 01 April 2013
DOI: 10.1130/2013.2494(09)
... that the volcanic rocks erupted from different magmatic sources and centers close to the Pajarito fault zone. Multiple pulses of volcanic eruptions mostly confined to the hanging wall of the Pajarito fault zone, which represents the current western boundary fault of the Española Basin, suggest that the Pajarito...
Series: GSA Special Papers
Published: 01 April 2013
DOI: 10.1130/2013.2494(08)
.... The Embudo–Santa Clara–Pajarito fault system, a collection of northeast- and north-striking faults in the center of the Española Basin, defines the western boundary of the half graben and was active throughout rifting. Throw rates near the middle of the fault system (i.e., the Santa Clara and north Pajarito...
Image
Three-dimensional model of the main <b>faults</b> of the <b>Pajarito</b> <b>fault</b> system and...
in > Geosphere
Published: 01 June 2009
Figure 9. Three-dimensional model of the main faults of the Pajarito fault system and their geometric relations in the subsurface. The principal east-dipping fault strands are shown penetrating at a high angle to the base of the brittle crust (e.g., Baldridge et al., 1995 ). Large black arrows
Image
Map showing the 50-km-long <b>Pajarito</b> <b>fault</b> system. Thick gray lines (S1–S7) ...
in > Geosphere
Published: 01 June 2009
Figure 3. Map showing the 50-km-long Pajarito fault system. Thick gray lines (S1–S7) provide locations of cross sections shown in Figure 8 . Circled letters A–M indicate portions of the fault system referenced in Figure 5 . Green star shows location of borehole 2C ( Gardner et al., 2001 ). Blue
Image
Geologic map of the <b>Pajarito</b> <b>fault</b> system west of and within Los Alamos Nat...
in > Geosphere
Published: 01 June 2009
Animation 1. Geologic map of the Pajarito fault system west of and within Los Alamos National Laboratory and the town of Los Alamos with embedded lithologic descriptions and photographs. To view the stratigraphic descriptions and photos embedded in the map, you will need Acrobat Adobe 8.0
Image
South-to-north profile of the <b>Pajarito</b> <b>fault</b> system (PFS) showing variation...
in > Geosphere
Published: 01 June 2009
Figure 5. South-to-north profile of the Pajarito fault system (PFS) showing variation in throw with distance along the fault system. Measurements of throw on individual faults are plotted as triangles, summed distributed deformation is plotted as squares, and total throw is plotted as dashed
Image
Cross sections of the <b>Pajarito</b> <b>fault</b> system. (A) West-east cross sections s...
in > Geosphere
Published: 01 June 2009
Figure 7. Cross sections of the Pajarito fault system. (A) West-east cross sections spanning the Pajarito fault system. DTE—down to the east.
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 October 2011
Lithosphere (2011) 3 (5): 328–345.
...) the north-striking Pajarito fault zone. Similarly, our data do not record any measurable relative change in declination difference (−1.1° ± 1.6°) that could be interpreted as a rotation over the ∼0.36 m.y. time duration between deposition of the two principal stratigraphic members of the Bandelier Tuff...
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Journal Article
Published: 01 December 1995
Bulletin of the Seismological Society of America (1995) 85 (6): 1867–1872.
... higher than those chosen by an expert panel for the Pajarito Fault, New Mexico, which has a long-term mean slip rate of ca. 0.12 mm/yr. 23 1 1995 Copyright © 1995, by the Seismological Society of America References Bull W. B. Pearthree P. A. (1988) . Frequency...
Journal Article
Journal: GSA Bulletin
Published: 01 December 1990
GSA Bulletin (1990) 102 (12): 1695–1705.
... in the north-east Jemez Mountains, has been located near its present position since at least middle Miocene time. The channel has meandered and shifted laterally, resulting in markedly different stratigraphic sections on either wall of the canyon in the vicinity of the western boundary (Pajarito) fault...
Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 522–550.
..., and sedimentation along the western margin of the Española basin. The plateau overlies the deepest part of the basin and is bounded on the west by the Pajarito fault zone, one of the basin's major bounding faults. The 1.61 to 1.22 Ma Bandelier Tuff, erupted from the adjacent Jemez volcanic field, caps the mesas...
FIGURES | View All (19)
Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 637–652.
... east of the Pajarito fault zone: R-25, R-26, CdV-16-1(i), CdV-16-2(i), and SHB-3 ( Fig. 2 ). Depth to water in these perched zones ranges from about 183 m (600 ft) near the Pajarito fault to about 244 m (800 ft) 2.3 km (1.4 mi) east of the fault. Only Wells R-25 and R-26 fully penetrate the perched...
FIGURES | View All (6)
Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 653–671.
... beneath the plateau, these authors also proposed that recharge areas for the aquifer beneath the plateau were either to the north and/or to the east (Sangre de Cristo Mountains) and not to the west. They hypothesized that the two flow systems are separated by the Pajarito fault acting as a flow barrier...
FIGURES | View All (13)
Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 620–636.
... are characterized by porosities ranging from 17 to 40%, unsaturated volumetric water contents from 3 to 12%, and low saturated hydraulic conductivities (e.g., 10 −6 to 10 −9 cm s −1 ) ( LANL, 2003b ). These tuffs are also more fractured in the vicinity of the Pajarito fault zone along the western mountain front...
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Journal Article
Journal: Geophysics
Published: 01 March 2007
Geophysics (2007) 72 (2): B31–B45.
... recharge is likely along fractures and faults associated with the Pajarito fault zone. In addition, recharge on the plateau, estimated from streamflow and other information ( Kwicklis et al., 2005 ), could contribute up to 23% of the total recharge to the aquifer. At these lower elevations, which include...
FIGURES | View All (11)
Series: GSA Special Papers
Published: 01 April 2013
DOI: 10.1130/2013.2494(07)
... The late Cenozoic extension in the Rio Grande rift of north-central New Mexico was predominantly accommodated by the north-south–trending Pajarito and Sangre de Cristo normal faults and the intervening east-northeast–striking predominantly strike-slip Embudo fault. Using this segment...
Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 672–693.
... rates on mesas of the Pajarito Plateau are generally <2 mm yr −1 , except near faults, where infiltration rates may be several tens to hundreds of millimeters per year. Infiltration rates at higher elevations in the Sierra de los Valles are typically >25 mm yr −1 in mixed conifer areas and >200...
FIGURES | View All (11)