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Esser, Karl; Kuenen, Rudolf

doi:10.1007/978-3-642-86814-6_3

Cited by 1 publication

(5 citation statements)

References 280 publications

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“…Approximately 0.5 km (0.3 mi) in diam eter, the cone straddles the Jornada Draw fault, with the western half of the cone constructed on eroded Crevasse Canyon Formation and the eastern half overlying the Palomas Formation. The excellent state of preservation of the cone sug gests a Pliocene-Quaternary age, and this is confirmed by an 40 Ar /3 9 Ar age of 2.04 ± 0.36 Ma obtained from lava on the flank of the cone (Esser, 2003a).…”

Section: Volcanic Rocks In the Camp Rice And Palomas Formationsmentioning

confidence: 57%

“…At Point of Rocks, one of these dikes transects Bell Top Formation and merges upward into flows of Uvas Basaltic Andesite, a relationship indicating the dike fed one of the flows and is late Oligocene in age. Esser (2003a) obtained an 40 Ar/ 39 Ar age of 26.8± 0.68 Ma for this dike. The dikes are generally basaltic in composition and range from aphyric to coarsely prophyritic.…”

Section: Descriptionmentioning

confidence: 81%

“…Also present are clasts of red granite and andesite porphyry. Two altered andesite clasts yielded 40 Ar / 39 Ar ages of 70.82 ± 0.42 Ma and 89.7 ± 1.0 Ma from groundmass concentrate and biotite respectively (Esser, 2003b ). The older date is spurious.…”

Section: Hall Lake Membermentioning

confidence: 94%

“…49). Conglomeratic sandstones are present Member range in age from 43.3± 0.7 to 67 ± 2.9 Ma (Esser, 2003b). These dates are not considered to be reliable.…”

Section: Jose Creek Membermentioning

confidence: 99%

“…The age of the top of the Love Ranch Formation is bracketed by its conformable contact with the Palm Park Formation, which has yielded K/ Ar radioisotopic ages of 51.5 ± 2.6 and 42.4 ± 1.6 Ma, corresponding to late Eocene (Kottlowski et al, 1969;Clemons, 1979). Two clasts of altered andesite por phyry from a basal conglomerate yielded 40 Ar/ 39 Ar ages of 89.4 ± 2.2 and 86.47 ± 0.4 Ma (Esser, 2003a), both dates inconsistent with known ages of Laramide volcanic fields in the region (75 Ma), as well as with the paleogeography of Coniacian and Santonian strata in southwestern New Mexico.…”

Section: Love Ranch Formationmentioning

confidence: 99%

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Geology of the Caballo Mountains, New Mexico

Seager¹,

Mack²

2003

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The Caballo Mountains, just south of Truth or Consequences, rise to an elevation of 7,065 feet. Today they are flanked on the west side by Caballo Reservoir and on the east side by the Jornada del Muerto. An extraordinary geologic section is preserved here. Precambrian igneous and metamorphic rocks (granites and schists) provide a view of the Precambrian history of this part of the country, and an extraordinary thickness of sedimentary rocks (whose collective thickness is more than 3.5 miles) gives us an unparalleled picture of the evolution of southern New Mexico. Development of these mountains began with compression and uplift associated with the Laramide orogeny, at the end of the Mesozoic. Since then the complex geologic history of this part of New Mexico has included uplift, erosion, faulting, volcanic activity, continental deposition, and, finally, the development of the Rio Grande rift. That complex geologic history is well documented in this volume. This memoir is the result of many years of study and field work on the part of the authors, who have drawn together in one place this comprehensive description of the region. The volume is heavily illustrated with photographs, maps, stratigraphic sections, and other graphics. It contains both an index and a glossary.

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Section: Volcanic Rocks In the Camp Rice And Palomas Formationsmentioning

confidence: 57%

Section: Descriptionmentioning

confidence: 81%

Section: Hall Lake Membermentioning

confidence: 94%

“…49). Conglomeratic sandstones are present Member range in age from 43.3± 0.7 to 67 ± 2.9 Ma (Esser, 2003b). These dates are not considered to be reliable.…”

Section: Jose Creek Membermentioning

confidence: 99%

Section: Love Ranch Formationmentioning

confidence: 99%

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