{"title":"Hornblende-dacite pumice in the Tshirege Member of the Bandelier Tuff: Implications for magma chamber and eruptive processes","authors":"J. Stimac","doi":"10.56577/ffc-47.269","DOIUrl":"https://doi.org/10.56577/ffc-47.269","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116159234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stratigraphy and depositional environments of middle and upper Jurassic rocks, southeastern San Juan Basin, New Mexico","authors":"O. J. Anderson, S. Lucas","doi":"10.56577/ffc-47.205","DOIUrl":"https://doi.org/10.56577/ffc-47.205","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116513656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Outline of the petrology and geochemistry of the Keres Group lavas and tuffs","authors":"R. Ellisor, J. Wolff, J. Gardner","doi":"10.56577/ffc-47.237","DOIUrl":"https://doi.org/10.56577/ffc-47.237","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125967846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pliocene and Quaternary history of the Rio Grande, White Rock Canyon and vicinity, New Mexico","authors":"S. Reneau, D. Dethier","doi":"10.56577/ffc-47.317","DOIUrl":"https://doi.org/10.56577/ffc-47.317","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132263092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Zonation of alkali feldspar compositions in the Tshirege Member of the Bandelier Tuff in Pueblo Canyon, near Los Alamos, New Mexico","authors":"M. Caress","doi":"10.56577/ffc-47.275","DOIUrl":"https://doi.org/10.56577/ffc-47.275","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132281515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The influence of topography, stratigraphy, and barometric venting on the hydrology of unsaturated Bandelier Tuff","authors":"D. A. Neeper, H. Gilkeson","doi":"10.56577/ffc-47.427","DOIUrl":"https://doi.org/10.56577/ffc-47.427","url":null,"abstract":"This paper presents a preliminary analysis of observations of vadose zone hydrology below two mesas of the Pajarito Plateau near Los Alamos, New Mexico. Abnormal quantities of moisture extend to depths as large as 90ft beneath asphalt-covered areas on the mesas. Comparison with moisture profiles beneath unpaved ground with and without vegetation indicates that atmospheric venting removes moisture from the deep subsurface. At several locations, the profiles of hydraulic head as a function of depth also suggest that the atmosphere may be removing moisture. The profiles reveal intervals where the gradient is such that moisture would flow upward (reversed gradient). A reversed gradient could be generated if moisture were removed from a particular horizon faster than it arrived by conduction and/or vapor diffusion. The vertical intervals with reversed gradient present barriers to downward aqueous transport of contaminants. At some locations, the barriers may be associated with atmospheric venting through nearby excavated disposal pits or open disposal shafts. However, the barriers also occur in stratigraphic horizons that are exposed to the atmosphere at the canyon walls, suggesting that venting may occur at the sides of the mesas. Although continuing investigations of subsurface air flow and rock properties have not yet revealed a model for natural venting that could remove the moisture far from ground surface or a canyon wall, a barrier might be maintained by barometric pumping via fractures or high-permeability layers.","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123776043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Volcaniclastic rocks of the Keres Group: Insights into mid-Miocene volcanism and sedimentation in the southeastern Jemez Mountains","authors":"A. Lavine, Gary A. Smith, F. Goff, W. Mcintosh","doi":"10.56577/ffc-47.211","DOIUrl":"https://doi.org/10.56577/ffc-47.211","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128448462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Paleomagnetic studies in the Jemez Mountains, New Mexico: A progress report on Quaternary volcanic rocks from Valles Caldera VC-2A, Sulphur Springs, and Lower Permian strata in San Diego Canyon and from VC-2B","authors":"J. Geissman, Hope J. Mullally","doi":"10.56577/ffc-47.115","DOIUrl":"https://doi.org/10.56577/ffc-47.115","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127050916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Some fundamental hydrologic issues pertinent to environmental activities at Los Alamos National Laboratory, New Mexico","authors":"W. Stone","doi":"10.56577/ffc-47.449","DOIUrl":"https://doi.org/10.56577/ffc-47.449","url":null,"abstract":"-Monitoring/restoring the 2000+ contaminated sites at Los Alamos National Laboratory (LANL) and protecting ground water in future waste-disposal activities, requires an understanding of the hydrologic system(s) on the Pajarito Plateau. Despite previous work, the conceptual hydrogeologic model for LANL is incomplete. Some fairly basic questions about ground-water occurrence, movement and quality remain. For example, what is the number of perched-water zones, the depth of ground water, the extent of perched-water zones, the possibility of recharge through the tuff, the ground-water flow direction near well fields, the origin of springs in White Rock Canyon, the fate of perched ground water, the water budget for the Pajarito Plateau, the background hydrochemistry for the saturated zones and the inventory ofradionuclides in canyons receiving effluent? Answering these involves synthesis of existing information, collection of new data and rethinking of current concepts.","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126546517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mineral resources in the Jemez and Nacimiento Mountains, Rio Arriba, Sandoval, Santa Fe and Los Alamos Counties, New Mexico","authors":"V. McLemore","doi":"10.56577/ffc-47.161","DOIUrl":"https://doi.org/10.56577/ffc-47.161","url":null,"abstract":"","PeriodicalId":371359,"journal":{"name":"Jemez Mountains Region","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128894121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}