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Fechamiento paleomagnético de flujos de lava recientes de la caldera de Los Humeros, Puebla
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Journal of Volcanology and Geothermal Research, 2005
Abstract We explored applications (including limitations) of Gauss's theorem to the study of silicic calderas. First it enables us to determine the mass deficiency from calderas. Mass deficiency itself has also other potential applications. It enables to make qualitative comparisons between calderas. We can use the mass deficiency to test, in a quick
J.O. Campos-Enríquez +4 more
exaly +2 more sources
Abstract We explored applications (including limitations) of Gauss's theorem to the study of silicic calderas. First it enables us to determine the mass deficiency from calderas. Mass deficiency itself has also other potential applications. It enables to make qualitative comparisons between calderas. We can use the mass deficiency to test, in a quick
J.O. Campos-Enríquez +4 more
exaly +2 more sources
Geochemistry of Los Humeros Caldera, Puebla, Mexico
Bulletin of Volcanology, 1982Geochemistry of Pliocene to recent volcanic rocks from Los Humeros caldera (19°30′ N – 19°50′ N and 97°15° W – 97°35′ W) in East-Central mexico is described. The volcanic rocks from this area seem to represent both alkali and high-alumina basalt series, or both calcalkaline and high-K calc-alkaline sequences.
S P Verma
exaly +2 more sources
Journal of Volcanology and Geothermal Research, 2014
Abstract The Cuicuiltic Member (CM) at Los Humeros Caldera, eastern Mexican Volcanic Belt is a Holocene (6.4 ka B.P.) succession of alternated fallout deposits of contrasting composition (trachydacite pumice and basaltic andesite scoria). The CM covers approximately 250 km2 on its proximal facies and its thickness ranges from 1.5 m to 8.0 m.
Pablo Dávila-Harris +1 more
exaly +2 more sources
Abstract The Cuicuiltic Member (CM) at Los Humeros Caldera, eastern Mexican Volcanic Belt is a Holocene (6.4 ka B.P.) succession of alternated fallout deposits of contrasting composition (trachydacite pumice and basaltic andesite scoria). The CM covers approximately 250 km2 on its proximal facies and its thickness ranges from 1.5 m to 8.0 m.
Pablo Dávila-Harris +1 more
exaly +2 more sources
Geochemical evidence for a lithospheric source for magmas from Los Humeros caldera, Puebla, Mexico
Chemical Geology, 2000Abstract This study reports new geochemical and Sr–Nd–Pb radiogenic isotope data on hy-normative Quaternary basaltic to rhyolitic volcanic rocks as well as two samples of Mesozoic to Palaeozoic intrusive igneous rocks from Los Humeros caldera (LHC), located in the eastern part of the Mexican Volcanic Belt (MVB).
Surendra P Verma
exaly +3 more sources
Gravity study of Los Humeros caldera complex, Mexico: Structure and associated geothermal system
Journal of Volcanology and Geothermal Research, 1992Abstract Los Humeros caldera lies in the eastern portion of the Trans-Mexican Volcanic Belt. A geothermal system is associated with this silicic caldera. The volcano-sedimentary products of the caldera itself rest on a basement of calcareous rocks and granitic intrusives.
J.O. Campos-Enriquez +1 more
exaly +2 more sources
Magma genesis and chamber processes at Los Humeros caldera, Mexico—Nd and Sr isotope data
Nature, 1983The Mexican volcanic belt (MVB), a roughly east–west structure, consists of many late Tertiary and Quaternary cindercones, domes, calderas and stratovolcanoes1,2. Los Humeros caldera (approximately 19°40′ N latitude, 97°25′ W longitude) lies on the northeastern part of the MVB where the belt overlaps with another major volcanic province, the Eastern ...
Verma Surendra P
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Alkali and alkaline earth element geochemistry of Los Humeros Caldera, Puebla, Mexico
Journal of Volcanology and Geothermal Research, 1984Abstract Results of the measurements of alkali (K, Rb and Cs) and alkaline earth (Ba and Sr) elements on seven pre-caldera and twenty post-caldera samples of Los Humeros volcanics (Pliocene to Recent) are described. These data are interpreted in terms of the known solid-liquid partition coefficients.
exaly +2 more sources
Journal of South American Earth Sciences, 2018
Abstract Los Humeros caldera in eastern Mexico has been formed since about 164 ka, with important effusive activity during the upper Holocene, which covered more than 100 km2 with lava. Two lava flows were 14C dated at 2692-1950 cal BCE and 1117-930 cal BCE, but the detailed succession of eruptions is yet unknown even though the interest for volcanic
Harald Bohnel +2 more
exaly +2 more sources
Abstract Los Humeros caldera in eastern Mexico has been formed since about 164 ka, with important effusive activity during the upper Holocene, which covered more than 100 km2 with lava. Two lava flows were 14C dated at 2692-1950 cal BCE and 1117-930 cal BCE, but the detailed succession of eruptions is yet unknown even though the interest for volcanic
Harald Bohnel +2 more
exaly +2 more sources