1956
DOI: 10.3133/pp281
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General geology of central Cochise County, Arizona, with sections on age and correlation

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Cited by 38 publications
(50 citation statements)
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“…Several rift-related igneous units exposed east of the Transcontinental Arch also provide important depositional constraints on the Sauk Sequence, such as those in the Wichita Mountains (534 ± 2 Ma; Gilbert and Hogan, 2010), the Shenandoah felsic dikes (555 ± 4 Ma and 567 ± 4 Ma; revised from Aleinkoff et al, 1995, by Burton and, and the Catoctin Rhyolite (571 ± 1 Ma; Southworth et al, 2009). It is noteworthy that the timing of deposition based upon biostratigraphic studies substantiates the maximum depositional age as constrained by the youngest most concordant single zircon grain from this and other detrital zircon studies (e.g., Wood Canyon Formation: Hunt, 1990;Hagadorn et al, 2000;Bolsa Formation: Jones and Bacheller, 1953;Gilluly et al, 1956;Coronado Formation: Ethington and Clark, 1964;Bliss Formation: LeMone, 1969; La Paz and El Desecho formations: Naipauer et al, 2010). However, we note that the youngest zircon age likely represents an underestimation of the maximum depositional age given the assumed normal age distribution of the youngest contributing source of detrital zircons.…”
Section: Depositional Model For the Van Horn Formation And Implicatiosupporting
confidence: 74%
“…Several rift-related igneous units exposed east of the Transcontinental Arch also provide important depositional constraints on the Sauk Sequence, such as those in the Wichita Mountains (534 ± 2 Ma; Gilbert and Hogan, 2010), the Shenandoah felsic dikes (555 ± 4 Ma and 567 ± 4 Ma; revised from Aleinkoff et al, 1995, by Burton and, and the Catoctin Rhyolite (571 ± 1 Ma; Southworth et al, 2009). It is noteworthy that the timing of deposition based upon biostratigraphic studies substantiates the maximum depositional age as constrained by the youngest most concordant single zircon grain from this and other detrital zircon studies (e.g., Wood Canyon Formation: Hunt, 1990;Hagadorn et al, 2000;Bolsa Formation: Jones and Bacheller, 1953;Gilluly et al, 1956;Coronado Formation: Ethington and Clark, 1964;Bliss Formation: LeMone, 1969; La Paz and El Desecho formations: Naipauer et al, 2010). However, we note that the youngest zircon age likely represents an underestimation of the maximum depositional age given the assumed normal age distribution of the youngest contributing source of detrital zircons.…”
Section: Depositional Model For the Van Horn Formation And Implicatiosupporting
confidence: 74%
“…There, lithologically intermixed Paleozoic rocks, previously mapped in detail as a complex Mesozoic thrust fault zone (Gilluly, 1956;Drewes, 1981), consist of megablocks depositionally enclosed in rhyolitic welded tuff that is spatially associated with a large Jurassic granitic intrusion. Less altered Cretaceous welded tuff (Sugarloaf Quartz Latite) unconformably overlies (rather than in thrust contact as mapped by Gilluly and Drewes) both the tuffaceous megabreccia and Jurassic intrusive rocks, suggesting that these rocks are parts of a caldera complex that was mineralized in the Jurassic.…”
Section: Ash-flow Calderas As Structural Controls Of Ore Deposition L9mentioning
confidence: 99%
“…The regional setting of the rocks and structures described above have been described by Gilluly (1956), Cooper (I960), and Drewes (1980 and1981). These studies conclude that many of the structural features were formed as a result of horizontally directed forces, typically oriented east-northeast, but another, local, study (Keith and Barnett, 1976) emphasizes vertical movements.…”
Section: Geologymentioning
confidence: 89%
“…The distribution of this limestone is shown on maps by Gilluly (1956) and Drewes and others (1982, fig. 20).…”
Section: Industrial Minerals and Rocksmentioning
confidence: 90%
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