Helium and argon thermochronometry of the Gold Butte block, south Virgin Mountains, Nevada

Reiners, Peter W.; Brady, Robert J.; Farley, K. A.; Fryxell, Joan E.; Wernicke, Brian P.; Lux, Daniel R.

doi:10.1016/s0012-821x(00)00080-7

Cited by 88 publications

(100 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the Beaver Dam Mountains, the timing of exhumation from our (U-Th)/He ages is within error of apatite fission track data (from Stockli, 1999) on these same samples, and compatible with the timing of exhumation regionally (e.g., Fitzgerald et al, 1991Fitzgerald et al, , 2003Fitzgerald et al, , 2009Reiners et al, 2000;Bernet et al, 2002;Reiners, 2005;Quigley et al, 2010). The youngest ages are also consistently between 18 and 17 Ma.…”

Section: Figure 5 Geologic Cross Section B-b′ Across the Beaver Dam supporting

confidence: 84%

“…Zircon is also widely used as a (U-Th)/He thermochronometer in extensional settings (e.g., Reiners et al, 2000Reiners et al, , 2002Lee et al, 2009). Zircon retains helium over a higher temperature range, from ~130 °C to as high as ~200 °C Wolfe and Stockli, 2010), but the zircon helium PRZ is not as well determined because diffusion kinetics in zircon are complicated by a number of factors, the most significant being the impact of radiation damage on He diffusion and (U-Th)/He ages.…”

Section: (U-th)/he Thermochronometrymentioning

confidence: 99%

“…Thermochronology studies of the Virgin Mountain anticline , and of the South Virgin-White Hills detachment in the Gold Butte block (Fitzgerald et al, 1991(Fitzgerald et al, , 2009Reiners et al, 2000;Bernet et al, 2002;Reiners , 2005), Lost Basin Range (Fitzgerald et al, 2009), and northern White Hills (Fitz gerald et al, 2003(Fitz gerald et al, , 2009) also show rapid cooling at 19-17 Ma. Sedimentological constraints from the region show a similar, but slightly younger age (ca.…”

Section: Temporal and Spatial Patternsmentioning

confidence: 99%

See 2 more Smart Citations

Low-temperature thermochronologic constraints on the kinematic histories of the Castle Cliffs, Tule Springs, and Mormon Peak detachments, southwestern Utah and southeastern Nevada

2015

View full text Add to dashboard Cite

We use apatite and zircon (U-Th)/He thermochronometry to evaluate the timing, magnitude, and spatial pattern of Miocene strain within the Beaver Dam Mountains, Tule Springs Hills, and Mormon Mountains of southwestern Utah and southeastern Nevada (USA). The region is host to three major low-angle structures, the Castle Cliffs, Tule Springs, and Mormon Peak detachments, the origin and role of which in regional extension are vigorously debated. We analyzed 36 samples collected from Precambrian basement gneisses and Paleozoic to Jurassic siltstones and sandstones exposed in the footwalls of these detachments. Zircon He ages from the footwall of the Castle Cliffs detachment record rapid footwall exhumation ca. 18-17 Ma. At structurally higher positions, apparent ages become progressively older, defining a zircon He partial retention zone. Paleodepth reconstructions of the data using published cross sections suggest 180 °C, or greater, of cooling or 6.8-8.2 km of total exhumation, yielding a maximum of ~13 km of extension across this detachment. In contrast, zircon and apatite ages from the footwall of the Mormon Peak record rapid exhumation at 14-13 Ma and 5.8-7.1 km of vertical exhumation. Using a range of restored fault dips (20°-28°) for the Mormon Peak detachment, the thermochronology data record 10.9-19.5 km horizontal extension. Data from the Tule Springs detachment also show a similar timing of exhumation and indicate that there has been 5.0-6.8 km of vertical exhumation and a minimum of ~5 km of extension. The results demonstrate that extension initiated in the east along the Castle Cliffs detachment and migrated westward with time. Although our data indicate that existing extension estimates across this system of detachment faults are too high (40 km versus 54 km), the pattern of cooling ages and protracted cooling history recorded in these ranges are inconsistent with rootless gravity slide interpretations and lowmagnitude extension models.

show abstract

Section: Figure 5 Geologic Cross Section B-b′ Across the Beaver Dam supporting

confidence: 84%

Section: (U-th)/he Thermochronometrymentioning

confidence: 99%

Section: Temporal and Spatial Patternsmentioning

confidence: 99%

See 1 more Smart Citation

Low-temperature thermochronologic constraints on the kinematic histories of the Castle Cliffs, Tule Springs, and Mormon Peak detachments, southwestern Utah and southeastern Nevada

2015

View full text Add to dashboard Cite

show abstract

“…Age-elevation profiles developed from samples collected from such a terrain will be characterized by an inflection point that marks the approximate position of paleodepth z b ; rocks below this elevation yield an ageelevation gradient indicative of the denudation rate, whereas the gradient above is a reflection of the pre-unroofing thermal structure. Profiles interpreted as exhumed portions of fissiontrack partial annealing zones -or conceptually similar (U-Th)/ He 'partial retention zones' (Wolf et al, 1998) -have been described by Fitzgerald et al (1995), Fitzgerald and Stump (1997), Reiners et al (2000), Stockli et al (2000), Xu and Kamp (2000), Bullen et al (2001), andCrowley et al (2002).…”

Section: Estimating Exhumation Ratesmentioning

confidence: 95%

Thermochronology in Orogenic Systems

Hodges

2014

Treatise on Geochemistry

View full text Add to dashboard Cite

“…Since the modern resurgence of (U-Th)/He dating (Zeitler et al, 1987;Farley et al, 1996;Wolf et al, 1996), numerous studies have used (U-Th)/He thermochronometry to study a wide range of geomorphic and tectonic processes (House et al, 1998;Reiners et al, 2000;Stockli et al, 2000;House et al, 2001;Stockli et al, 2002;Armstrong et al, 2003;Ehlers et al, 2003;Reiners et al, 2003). More recent studies have exploited the relatively rapid ingrowth of He to date young volcanic deposits Aciego et al, 2003;Davidson et al, 2004;Min et al, 2005), and to understand diffusive loss of He associated with wildfires (Mitchell and Reiners, 2003) and shock metamorphism of meteroites (Min et al, 2004).…”

Section: Introductionmentioning

confidence: 99%