A5025108585- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Marine and environmental studies
- Geological and Tectonic Studies in Latin America
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Environmental and Ecological Studies
- Geological Formations and Processes Exploration
- Mineralogy and Gemology Studies
- Mining Techniques and Economics
- Coastal and Marine Dynamics
- Seismic Waves and Analysis
The University of Texas at El Paso
2014-2024
Research Article| October 31, 2018 Early Cretaceous ridge subduction beneath southern Alaska: Insights from zircon U-Pb geochronology, hafnium, and oxygen isotopic compositions of the Western Chugach tonalite-trondhjemite suite Munazzam Ali Mahar; Mahar † 1Department Geological Sciences, University Texas at El Paso, 79968, USA †mali3@utep.edu Search for other works by this author on: GSW Google Scholar Terry L. Pavlis; Pavlis John R. Bowman; Bowman 2Department Geology Geophysics, Utah, 115 S...
Abstract We provide laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) and high-precision chemical abrasion–isotope dilution–thermal ionization mass (CA-ID-TIMS) U-Pb ages Hf isotopic compositions of zircons from the Red Bluff Granite Suite mafic dikes in Franklin Mountains El Paso, Texas, USA. Granitoids exposed were previously divided into five magmatic stages based on cross-cutting relationships. Major trace element showed that these granitoids are...
Mansehra Granite (MG) is massive and sheared which contains light-gray to jet-black schistosed micaceous quartzite restites.The later possess relatively higher quartz as compared with mica contents whereas the former has predominant feldspar.Enclosure of apatite zircon in micas absence sillimanite non-foliated facies suggest that these rocks are restite nature.Presence abundant larger flakes at contact restites MG indicates exposure temperature granitic melt (623.7-886.6 °C) particularly...
The southeast shoulder of the Rio Grande Rift is located in southeastern New Mexico and west Texas US northern Chihuahua Mexico. Noted mineral resources region are enriched rare earth elements increasing interest research. These related to tertiary volcanism. magmas this volcanism have similar composition that oceanic island basalts suggesting they were created from asthenosphere derived basement North American Craton. That basement, area interest, constitutes Mazatzal Grenville Proterozoic...
This poster provides LA-MC-ICP-MS U-Pb geochronology and time-constrained zircon Hf isotope composition on five samples from two stages of the Red Bluff Granitic Suite ferroan basalt dikes within Franklin Mountains El Paso, Texas.Zircon yielded Concordia ages 1121.3 ± 2.9 Ma an 1118.4 5.4 for stage-1 syenite main body stage-2 granite, respectively.The basaltic a similar weighted mean age 1124 14.1 Ma.Our new coupled with previous geochronological efforts revealed subtle differences in timing...