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Geoscientists discover ancestral Puebloans survived on ice melt in New Mexico lava tubes（图）
Geoscientists ancestral Puebloans survived ice melt New Mexico lava tubes
2020/12/11
For more than 10,000 years, the people who lived on the arid landscape of modern-day western New Mexico were renowned for their complex societies, unique architecture and early economic and political ...
FLOOD VULNERABILITY REDUCTION, USING A PARTIAL PARTICIPATORY GIS APPROACH. A STUDY CASE IN BAJA CALIFORNIA SUR, MEXICO
Participatory cartography loods cyclones vulnerability reduction
2018/4/18
A partial participatory GIS approach was implemented in a community in La Paz, Baja California Sur, Mexico to reduce vulnerability of floods caused by cyclones. A workshop was held to locate areas sus...
Mollusk Species Richness on the Rocky Shores of the State of Guerrero, Mexico, as Affected by Rains and Their Geographical Distribution
Rocky Shore Species Richness Geographic Distribution Rain Effects Mollusks
2013/3/8
Natural processes in ecosystems shows significant variations in species richness with regular cycles that can be altered by natural or anthropogenic activities; the present research was in order to un...
Radium depletion and 210Pb/226Ra disequilibrium of Marítaro hydrothermal deposits, Los Azufres geothermal field, Mexico
hydrothermal deposits 210Pb 226Ra radium adsorption Los Azufres
2017/4/11
In order to calculate the chronology of hydrothermal deposits precipitated from hot springs at Marítaro, Los Azufres
geothermal field, Mexico, their 224Ra, 226Ra, 228Ra and 210Pb activities were meas...
Micromorphology investigation of sepiolite bearing petrocalcic horizons formed from lacustrine sediments on the southern high planes of Texas and New Mexico
micromorphology investigation petrocalcic horizons lacustrine sediments
2011/11/8
The presence of sepiolite in soils has long been thought to have been attributed to inheritance from alternative parent material via secondary (eolian, alluvial) depositional processes due to sepiolit...
Late Pleistocene-Holocene geochemical history inferred from Lake Tecocomulco sediments, Basin of Mexico, Mexico
Late Quaternary geochemistry paleohydrology Lake Tecocomulco Basin of Mexico
2017/8/9
This paper presents stratigraphy, mineralogy, multi-element geochemistry, organic and inorganic carbon contents in the sediments along a 255 cm long depth profile from Lake Tecocomulco in the north-ea...
Relationship between nanostructure and optical absorption in fibrous pink opals from Mexico and Peru
opal optical absorption nanostructure Raman palygorskite TEM
2011/11/11
Translucent pink opals from Mexico (states of Mapimi and Michoacan) and Peru (Acari area, near Arequipa) are opal-
CT, containing from 10 to 40 % palygorskite, as demonstrated by XRD, infrared absorp...
Detrital Origin of a Sedimentary Fill, Lechuguilla Cave, Guadalupe Mountains, New Mexico
Caves Cave Sediments Lechuguilla Cave
2011/12/6
Abstract: Lechuguilla Cave is a hypogene cave formed by oxidation of ascending hydrogen sulfide from the Delaware Basin. A unique sediment deposit with characteristics suggesting derivation from the l...
CLAYS IN CAVES OF THE GUADALUPE MOUNTAINS,NEW MEXICO
CLAY THE GUADALUPE MOUNTAINS NEW MEXICO
2011/11/10
The origins of clay minerals in the caves of the Guadalupe Mountains, New Mexico are categorized as (1) detrital, (2) inherited from the weathering of dolostone and siltstone, and (3) authigenic. Clay...
Authigenesis of Trioctahedral Smectite in Magnesium-Rich Carbonate Speleothems in Carlsbad Cavern and Other Caves of the Guadalupe Mountains, New Mexico
Authigenesis Carlsbad Cavern Caves Dolomite Huntite Moonmilk Stevensite Trioctahedral Smectite
2011/12/6
Abstract: Trioctahedral smectite is a constituent of Mg-rich carbonate crusts and moonmilks (pasty deposits) in caves of the Guadalupe Mountains of southeastern New Mexico. Energy dispersive X-ray mic...
The Kinetics of the Smectite to Illite Transformation in Cretaceous Bentonites, Cerro Negro, New Mexico
Bentonite Cerro Negro Cretaceous Illite I-S K-Ar Kinetics Microorganisms New Mexico Smectite
2011/12/7
Abstract: The thermal effects, as well as the survivability and origins of microorganisms in Cretaceous rocks, are evaluated from the timing and extent of the smectite to illite transformation in Cret...
Chemical Variations in Chlorite at the Los Humeros Geothermal System, Mexico
Chlorite Geothermal System Hydrothermal Mexico Octahedral Occupancy Phyllosilicate
2011/12/8
Abstract: The chemical composition of hydrothermal chlorite was determined by means of more than 200 electron microprobe analyses (EMPA) in almost all of the 70 chlorite-bearing samples taken from 5 b...
Electron Microscopy and X-ray Analysis of Lacustrine Clays from the Charo Canyon, State of Michoacan, Mexico
Clays Electron Microscopy Geology X-Ray Analysis
2011/12/8
Abstract: In this paper we analyzed by electron microscopy and X-ray diffraction (XRD) the exposed lacustrine clay in a stratigraphic column at Charo Canyon, State of Michoacán, Mexico. Smectite, cris...
Smectite Illitization in Pliocene-Age Gulf of Mexico Mudrocks
Clay Diagenesis Core Analysis Gulf of Mexico Illite Smectite TEM XRD
2011/12/1
Abstract: Utilizing high-resolution transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques, we have studied the transition from shallower s...
Alunite, Natroalunite and Hydrated Halloysite in Carlsbad Cavern and Lechuguilla Cave, New Mexico
Alunite Carlsbad Cavern Caves Hydrated Halloysite Lechuguilla Cave Natroalunite Sulfuric Acid Sulfur Stable Isotopes
2011/12/27
Members of an alunite-natroalunite solid solution series occur in intimate association with hydrated halloysite in deposits within caves of the Guadalupe Mountains, namely Carlsbad Cavern and Lechugui...