Geophysical Interpretations of the Southern Espanola Basin, New Mexico, That Contribute to Understanding Its Hydrogeologic Framework

V. J. S. Grauch; Jeffrey D. Phillips; Daniel Koning; Peggy S. Johnson; Viki Bankey

doi:10.3133/pp1761

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Geophysical Interpretations of the Southern Espanola Basin, New Mexico, That Contribute to Understanding Its Hydrogeologic Framework

V. J. S. Grauch·Jeffrey D. Phillips·Daniel Koning·Peggy S. Johnson·Viki Bankey

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Abstract

The southern Espanola basin consists of a westward- and northward-thickening wedge of rift fill, composed primarily of Santa Fe Group sediments, that serves as an important aquifer for the city of Santa Fe and surrounding areas. Detailed aeromagnetic surveys were flown to better understand ground-water resources in this aquifer. This report presents a synthesis of these data with gravity data and other constraints. The interpretations were accomplished using qualitative interpretation, state-of-art data analysis techniques, and two- and three-dimensional modeling. The results depict the presence of and depth to many geologic features that have hydrogeologic significance, including shallow faults, different types of igneous units, and basement rocks. The results are presented as map interpretations, geophysical profile models, and a digital surface that represents the base and thickness of Santa Fe Group sediments, as well as vector files of some volcanic features and faults.

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Source-reported bounding extent: 35.3675° to 36.1175° latitude; -106.28416666666666° to -105.86749999999999° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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V. J. S. Grauch, Jeffrey D. Phillips, Daniel Koning, Peggy S. Johnson, Viki Bankey. 2009. Geophysical Interpretations of the Southern Espanola Basin, New Mexico, That Contribute to Understanding Its Hydrogeologic Framework. https://doi.org/10.3133/pp1761

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