Constraints on deformation of the resurgent dome, Long Valley Caldera, California from space geodesy

Dixon, Timothy H.; Bursik, Marcus; Wolf, Susan Kornreich; Heflin, M. B.; Webb, F.; Farina, Frederic; Robaudo, Stefano

doi:10.1029/gd023p0193

Cited by 16 publications

(6 citation statements)

References 47 publications

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“…Alternatively, tape recorders on the JERS-1 and RADARS AT spacecraft could provide coverage anywhere around the world provided that the radar data are requested. Dixon et al (1993) have been used to constrain the regional tectonic setting of Long Valley caldera, California, site of a volcanic crisis following seismic activity in the late 1980's, as well as measuring strain associated with the growth of the resurgent dome.…”

Section: Methods For Predictionmentioning

confidence: 99%

Volcanic eruptions, prediction, hazard assessment, remote sensing, and societal implications

Self¹,

Mouginis-Mark²

1995

Reviews of Geophysics

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In volcanology, the period 1991–1994 was very busy, with many active volcanoes keeping pace with the higher‐than‐average frequency of eruptions (about 60–70 per year) recorded during the late 1970's to the late 1980's (Simkin, 1993). Some large and violent eruptions occurred in well populated areas but these passed without the higher death tolls caused by eruptions in the previous decade, a reflection perhaps of increased volcanic hazard awareness, improved prediction and monitoring, and better communication between volcanologists and public officials (Peterson and Tilling, 1993). The loss of human life was limited to a little over 1000, with perhaps ∼750 of these attributable to the Mount Pinatubo eruption on Luzon in the Philippines. Many were killed by post‐eruption phenomena, such as mudflows, and by disease in the displaced populations. This large eruption, which had a world‐wide atmospheric impact, dominates the picture of volcanism in the early 1990's. However, significant eruptions also occurred at Hudson, Unzen, Spurr, Redoubt, Hekla, Mayon, Galeras, Rabaul, Kliuchevskoi, Etna (the most voluminous lava outpourings this century), and many other volcanoes. Here we assess the current state of volcano monitoring and hazard awareness against a backdrop of the eruptions of the past four years, and take a look at future developments, stressing new techniques in the field of remote sensing.

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Section: Methods For Predictionmentioning

confidence: 99%

Volcanic eruptions, prediction, hazard assessment, remote sensing, and societal implications

Self¹,

Mouginis-Mark²

1995

Reviews of Geophysics

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“…Synextensional emplacement of a pluton along a fault may also inhibit subsequent movement, effectively pinning the fault (Davis et al, 1993). It is noteworthy that normal faulting decreases toward some of the Quaternary volcanic fields in the Basin and Range, including the Yellowstone Plateau (Pierce and Morgan, 1992) and Long Valley-Mono Basin area (Bursik and Sieh, 1989;Dixon et al, 1993). Brittle deformation may give way to distributed ductile deformation in the vicinity of youthful or active magmatic centers due to the presence of partially molten material or significantly warmer crust.…”

Section: Accommodation Zonesmentioning

confidence: 99%

The role of accommodation zones and transfer zones in the regional segmentation of extended terranes

Faulds¹,

Varga²

1998

Accommodation Zones and Transfer Zones; The Regional Segmentation of the Basin and Range Province

177

176

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All normal-fault systems must terminate both along and orthogonal to strike. As many as four terminations may be associated with a single culmination. Most normalfault systems terminate in either transfer zones or accommodation zones. In the nongenetic classification proposed here, transfer zones are defined as discrete zones of strike-slip and oblique-slip faulting that generally trend parallel to the extension direction and typically facilitate a transfer of strain between extended domains arranged in an en echelon pattern. Accommodation zones are belts of overlapping fault terminations and can separate either systems of uniformly dipping normal faults or adjacent domains of oppositely dipping normal faults. They can trend parallel, perpendicular, or oblique to the extension direction. A review of variously extended continental provinces and passive continental margins reveals that the style of deformation within transfer and accommodation zones is independent of the magnitude of extension.Strike-slip and oblique-slip faults within transfer zones are closely linked kinematically with major normal faults within the extended terranes. Transfer zones linking spatially separated loci of extension display along-strike variations in both magnitude and sense of motion, whereas local normal and reverse faults may develop in the vicinity of releasing and restraining fault bends. Strain within accommodation zones is transmitted directly between normal-fault systems, geometries being controlled by the amount of overlap between and relative dip direction of competing sets of normal faults. Antithetic accommodation zones develop between oppositely dipping normal-fault systems, whereas synthetic accommodation zones occur between similarly dipping systems. In the synthetic zone, relay ramps commonly connect the hanging wall of one fault to the footwall of another fault and trend obliquely in zones that have significantly overlapping normal faults but transversely (parallel to extension direction) in zones that have minimal overlap. Antithetic zones exhibit a wider variety of geometries, including (1) strike-parallel (parallel to trend of rift) anticlines and synclines between normal-fault systems having complete overlap that dip toward and away from one another, respectively, (2) obliquely trending anticlines and synclines in areas of partial fault overlap, and (3) transverse zones between minimally overlapping fault systems. The distinction between the strike-parallel and transverse accommodation zones is scale dependent; large strike-parallel segments are characterized by finescale offsets of hingelines along small transverse segments, and large transverse zones Faulds, J. E., and Varga, R. J., 1998, The role of accommodation zones and transfer zones in the regional segmentation of extended terranes, in Faulds, J. E., and Stewart, J. H., eds., Accommodation Zones and Transfer Zones: The Regional Segmentation of the Basin and Range Province: Boulder, Colorado, Geological Society of America Special Paper 323. 1 on March 24, 2...

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“…Data were analyzed using the GIPSY software [Blewitt, 1989;Lichten, 1990] following analytical conditions listed in Dixon et al [ 1993] except that polar motion was estimated and the no fiducial approach was used. Velocities and errors are based on weighted least squares fits through position data, with weights from formal errors scaled by day to day scatter.…”

Section: Paper Number 93gl02415mentioning

confidence: 99%

GPS measurement of relative motion of the Cocos and Caribbean Plates and strain accumulation across the Middle America Trench

Dixon

1993

Geophysical Research Letters

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Global Positioning System (GPS) measurements in 1988 and 1991 on Cocos Island (Cocos plate), San Andres Island (Caribbean plate), and Liberia (Caribbean plate, mainland Costa Rica) provide an estimate of relative motion between the Cocos and Caribbean plates. The data for Cocos and San Andres Islands, both located more than 400 km from the Middle America Trench, define a velocity that is equivalent within two standard errors (7 mm/yr rate, 5 degrees azimuth) to the NUVEL‐1 plate motion model. The data for Liberia, 120 km from the trench, define a velocity that is similar in azimuth but substantially different in rate from NUVEL‐1. The discrepancy can be explained with a simple model of elastic strain accumulation with a subduction zone that is locked to a relatively shallow (20±5 km) depth.

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Constraints on deformation of the resurgent dome, Long Valley Caldera, California from space geodesy

Cited by 16 publications

References 47 publications

Volcanic eruptions, prediction, hazard assessment, remote sensing, and societal implications

Volcanic eruptions, prediction, hazard assessment, remote sensing, and societal implications

The role of accommodation zones and transfer zones in the regional segmentation of extended terranes

GPS measurement of relative motion of the Cocos and Caribbean Plates and strain accumulation across the Middle America Trench

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