Modern uplift associated with a proposed magma body in the vicinity of Socorro, New Mexico

Research Article| October 01, 1976 Modern uplift associated with a proposed magma body in the vicinity of Socorro, New Mexico Robert Reilinger; Robert Reilinger 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar Jack Oliver Jack Oliver 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar Geology (1976) 4 (10): 583–586. https://doi.org/10.1130/0091-7613(1976)4<583:MUAWAP>2.0.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Robert Reilinger, Jack Oliver; Modern uplift associated with a proposed magma body in the vicinity of Socorro, New Mexico. Geology 1976;; 4 (10): 583–586. doi: https://doi.org/10.1130/0091-7613(1976)4<583:MUAWAP>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Analysis of repeated levelings in and near a part of the Rio Grande rift in New Mexico reveals a zone of anomalous relative uplift in the vicinity of Socorro. Maximum uplift relative to nearby bench marks was about 20 cm from 1911 to 1951, corresponding to an average relative velocity of 5 mm/yr. This feature is one of the most clear-cut and striking anomalies of this scale ever detected by leveling in the United States. The principal data come from a north-south profile extending from El Paso, Texas, to Albuquerque, New Mexico. The primary anomaly extends approximately 70 km north from a point about 15 km south of Socorro; the maximum observed uplift occurs approximately 25 km north of Socorro. This zone of anomalous relative uplift overlies and closely correlates spatially with the unusual crustal discontinuity that was detected by Sanford and others and which, on the basis of a variety of evidence, was tentatively identified by them as the upper boundary of a magma body at a depth of about 18 km beneath Socorro. A simple elastic model for surface deformation associated with subsurface magmatic activity indicates that the observed movement in the Socorro area could result from the expansion of a magma chamber at a depth approximately equal to the depth of the discontinuity reported by Sanford and others, but the model is nonunique, and an elastic model may not be realistic. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.