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NMBGMR Open-file Geologic Map 228 Last Modified June 2012 NEW MEXICO BUREAU OF GEOLOGY AND MINERAL RESOURCES A DIVISION OF NEW MEXICO INSTITUTE OF MINING AND TECHNOLOGY 106°50'0"W 331000 332000 106°47'30"W 333000 334000 335000 336000 106°45'0"W 337000 MAP UNIT DESCRIPTIONS 338000 3750000 B' 33°52'30"N A' Hmf Qay2 Qayb Qay2 Qay2 Hmf Qes1 Qay1 Qay2 QTsf Qes1 Qayb QTsf Qayb Qsa Qfy 3748000 Qes2 Qsa QTsf Qes1 Qaf Qaf Qes2 Qfo Qaf Qpo Qpye Rw Qaf Hmf Qpm QTsf Qpm Qes1 Qpm Qes1 Qaf 3746000 Qes1 Qpye Rf Qes/QTsp Qpm Qpm 1 Qpm Qay1? Qpm Qec Hf Qfi 33°50'0"N Qpm Qay1 3745000 ¢ȱ 3745000 33°50'0"N ȏȱ ¢ȱȱǻȱȱȱ ǼDZȱǰȱǰȱȱȱȱȱȱȱ ȱȱȱȱĚǯȱȱȱȱȱȱȱ£ǰȱ¢ǰȱȱȱȱȱ ȱȱȱȱȱǯȱȱȏȱȱȱȱȬȱȱȱ ȱȱDzȱȱȱ ȱǰȱȱȱȱȱȱȱȱȱ ȱ ȱ ǰȱ ȱ ȱ ȱ ȱ ę¢ȱ ȱ Ȭȱ ȱ ȱ Ȭȱ ǯȱ ȱȱȱȱȏȱȱȱę¢ȱ ȱȱ¢ȱȱ¢ȱȱǯ Qes/QTsp? Qp QTsf Qes1 Qay1 Qfay Hmf Qes1 QTsf Qayb Qfy Qec Qp Qes/QTsp? Qaf Qeb Qec Qes2 Rf Qpm Rf QTsf? Rf Rsb Qpye Qpm Qpy Qpm Qpye Qpm Rsb Hmf Qpo Qpy Qes2 Qpm Qfay Hf Qes2 Qes2 Qes2 Qfy af 3741000 af Qeb Hmf Qam Qam Qfy Qebs Qeb Qam 33°47'30"N Qayb Qaf Qam Rf Qfo Qeb? Qayb Qes1 QTsf Qebs? Qeb? Qfi Qfay Qfy 3739000 Qph Qaf Qay2 Qayb Qay1 QTsf Qebs Qfy Tria. Cretaceous Rsb Qeb af 3738000 Qesr Qebs QTsf Qeb Hmf Qfay Permian Qeb Qeb Qes2 Mike W QTsf ult Qes2 QTsf Qes/QTsf Qes2 Qes/QTsf Qeb Qes/QTsf QTsf Qes/QTsf 33°45'0"N 327000 106°52'30"W 328000 329000 330000 331000 106°50'0"W 332000 1 LUIS LOPEZ SAN ANTONIO 0.5 1000 0 1 INDIAN WELL WILDERNESS CERRO DE LA CAMPANA SAN ANTONIO SE NEW MEXICO 334000 106°47'30"W 0 LITTLE SAN PASQUAL MOUNTAIN GRANJEAN WELL 1000 0.5 2000 3000 4000 5000 0 6000 7000 FEET 1 KILOMETER CONTOUR INTERVAL 10 FEET QUADRANGLE LOCATION New Mexico Bureau of Geology and Mineral Resources New Mexico Tech 801 Leroy Place Socorro, New Mexico 87801-4796 [575] 835-5490 http://geoinfo.nmt.edu 336000 337000 Cross-section line Point symbols 3 Strike and dip of inclined bedding Horizontal bedding Paleocurrent direction from pebble imbrications ȱȱȱȱ ȱĴȱȱȱȱȱȱǯȱȱȱ ǯȱȱȱ¢ȱȱȱȱȱȱȱ ȱşŖȱȱȱȱǰȱ ȱȱ ȱ¢ȱȱȱȱȱȱĴȱȱȱȱȱȱȱȱ ȱȱ¢ȱ ȱȱȱȱȱȱȱȱǻǰȱŗşŜřǼǯ 338000 106°45'0"W SW New Mexico Bureau of Geology and Mineral Resources Open-File Geologic Map 228 Mapping of this quadrangle was funded by a matching-funds grant from the STATEMAP program of the National Cooperative Geologic Mapping Act, administered by the U. S. Geological Survey, and by the New Mexico Bureau of Geology and Mineral Resources, (L. Greer Price, Director and State Geologist, Dr. J. Michael Timmons, Geologic Mapping Program Manager). Geologic map of the San Antonio SE quadrangle, Socorro County, New Mexico June, 2012 by Colin T. Cikoski New Mexico Bureau of Geology and Mineral Resources, 801 Leroy Place, Socorro, NM 87801 This draft geologic map is preliminary and will undergo revision. It was produced from either scans of hand-drafted originals or from digitally drafted original maps and figures using a wide variety of software, and is currently in cartographic production. It is being distributed in this draft form as part of the bureau's Open-file map series (OFGM), due to high demand for current geologic map data in these areas where STATEMAP quadrangles are located, and it is the bureau's policy to disseminate geologic data to the public as soon as possible. After this map has undergone scientific peer review, editing, and final cartographic production adhering to bureau map standards, it will be released in our Geologic Map (GM) series. This final version will receive a new GM number and will supercede this preliminary open-file geologic map. NE Facing northwest A 1500 Qfy Hf Hmf Rf Rw Qfi Qes1 QTsf Qes1 Qa 1100 DRAFT Qes1 Qp Qes1 Qp QTsp QTsf 1300 1000 m Notes on cross-section A-A': -No vertical exaggeration. -Thicknesses of post-Santa Fe Group units are exaggerated. -Location of bottom of Santa Fe Group is unconstrained. -Offset across Cemetery fault is unconstrained. -Location of contact between QTsf and QTsp is constained by surface observation but not by subsurface data. -Fite fault and Mesozoic strata are projected from Cather (2002) and Cather (2007). Neither are exposed on San Antonio SE. QTsp A' Kgc Kmd Kth Kml Kd ^u COMMENTS TO MAP USERS A geologic map displays information on the distribution, nature, orientation, and age relationships of rock and deposits and the occurrence of structural features. Geologic and fault contacts are irregular surfaces that form boundaries between different types or ages of units. Data depicted on this geologic quadrangle map may be based on any of the following: reconnaissance field geologic mapping, compilation of published and unpublished work, and photogeologic interpretation. Locations of contacts are not surveyed, but are plotted by interpretation of the position of a given contact onto a topographic base map; therefore, the accuracy of contact locations depends on the scale of mapping and the interpretation of the geologist(s). Any enlargement of this map could cause misunderstanding in the detail of mapping and may result in erroneous interpretations. Site-specific conditions should be verified by detailed surface mapping or subsurface exploration. Topographic and cultural changes associated with recent development may not be shown. Cross sections are constructed based upon the interpretations of the author made from geologic mapping, and available geophysical, and subsurface (drillhole) data. Cross-sections should be used as an aid to understanding the general geologic framework of the map area, and not be the sole source of information for use in locating or designing wells, buildings, roads, or other man-made structures. The map has not been reviewed according to New Mexico Bureau of Geology and Mineral Resources standards. The contents of the report and map should not be considered final and complete until reviewed and published by the New Mexico Bureau of Geology and Mineral Resources. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the State of New Mexico, or the U.S. Government. SSW NNE Facing west-northwest B (Qpe) 1500 Qes2 Qes2 Qes1? QTsf 1400 1300 Py? Mike Well faul This and other STATEMAP quadrangles are available for free download in both PDF and ArcGIS formats at: Magnetic Declination July, 2011 9º 8' East At Map Center 335000 1 MILE NATIONAL GEODETIC VERTICAL DATUM OF 1929 SAN MARCIAL Low scarp, well located, approximately located. Here, symbol is simply descriptive, with no assocated interpretation. 1:24,000 Topography by photogrammetric methods from aerial photographs taken 1972, field checked in 1975. Map edited 1982. 1927 North American datum, New Mexico coordinate system, central zone (Transverse Mercator). Reprojected to UTM projection -- zone 13. 1000-meter Universal Transverse Mercator grid, zone 13, shown in red. CANON AGUA BUENA 333000 Terrace riser, well located, approximately located. Hashes point down-scarp; queried where existence is uncertain. Convolute bedding from soft sediment deformation Meters above sea level 326000 ȱȱȱǻǼ Joints or minor faults inferred from topography 33°45'0"N B ȱǰȱ Crest of ridge of eolian sands Qes/QTsf Qes/QTsf Meters above sea level Qes2 3736000 3736000 Qes2 ^uȱ ǰȱǯǯȱŗşŜśǯȱ¢ȱȱ¢ȱȱȱ ȱȱȱȱȱȱȱȱȱ ȱȱȱ¢ǰȱ ȱ¡DZȱȱȱ¢ǰȱȬ¢ȱȱŗŞŖŗDZȱŝŞȱǯ Rim of a blowout, hashes point into blowout Notes: -Solid lines indicate known age extent of units -Dashed lines indicate inferred age extent of units -Age relations between piedmont alluvium and tributary/Rio Grande alluvium are uncertain -Only pre-Pliocene units known to be present at depths of given cross-sections are shown; work of Cather (2002, 2007) to north and reconnaissance work to east suggest several more units are present at depth across the San Antonio SE quadrangle Qebs ȱȱȱǻȱǼ faul t Qfy ell fa 3737000 ȱ ¢ǰȱǯǯȱŗşşŗǯȱȬ ȱȱȱȱ¢ǰȱ ȱ¡DZȱȱȱ¢ǰȱ ȬȱȱȱŞşȬŚŖŞřDZȱŗŖřȱǯ QTsp (intervening units not present at surface or in cross-section depth range used here) Permian system (cross-section only, at south end of quadrangle) Py Qebs ȱ ȱȱȱȱȱȱǻȱȱȱ ȱǼ eter y Qesr Hf ȱ ǰȱǯǯȱȱǰȱǯǯȱŘŖŖřǯȱęȱȱȱȱȱȱȱȱ¢ȱĚǰȱ ȱȱȱȱȱĴȱǰȱ ȱ¡DZȱ ȱ¡ȱȱȱ¢ȱȱ ȱǰȱȬęȱȱȬŚŝŝǯ Fault, well located, approximately located, concealed. Ball on down-thrown side, queried where existence is uncertain. Mesozoic erathem (cross-section only, in northeast corner of quadrangle) Kgc Kmd Kth Kml Kd ^u ȱȱ ȱȱǻȱǼ Cather, S.M. 2007. Preliminary geologic map of the Cañon Agua Buena quadrangle, Socorro ¢ǰȱ ȱ¡DZȱ ȱ¡ȱȱȱ¢ȱȱȱǰȱȬęȱȱ ȱȬȬŗŚŜDZȱȱŗDZŘŚǰŖŖŖǯ unconformity upper Santa Fe Group (Sierra Ladrones Formation to north, Palomas Formation to south) ȱ Cather, S.M. 2002. Geology of the San Antonio quadrangle, Socorro County, New Mexico: New ¡ȱȱȱ¢ȱȱȱǰȱȬęȱȱȱȬȬśŞDZȱȱŗDZŘŚǰŖŖŖǯ Qsa Qfo ȱȬȱȱȱȱȱȱǻȱȱȱȱ ȱǼ REFERENCES ȱ Contact, well located, approximately located, inferred location, concealed. Queried where existence is uncertain. Qfo? Hmf 3737000 Qpm angular unconformity Rf 3738000 Qpy Qpf Qpo Hf Rf Rw Qam ȱ Cem 3739000 Qah Eolian units Local slopewash Qes2 Qesr Qebs Qec Qeb ȱȱȱȱȱ¢ȱȱǻ ȱȱȱǵǼ ¢ȱ Qes1 Qebs? Qeb? Qfo Piedmont alluvium (from streams that do not reach the RG floodplain) Tert. Plio. Hf Qfy Qfi Rf Tributary alluvium (from streams that reach the RG floodplain) Hf 3740000 Qfo Hmf af Qebs? Qes1 3740000 Hmf Pleistocene 33°47'30"N Qpm? Qeb Qpm? Artificial ȱ Gap in rocks presented in cross-sections; gap is not necessarily present in deep subsurface across the quadrangle. ȱ ȱ ȱȱǻȱ ǼDZȱȱ¢ ȱȱęȱȱȱȱ ȱȱ ȱ ǯȱ ȱ ȱ ȱ ȱ ǰȱ ¢ȱ ¢ȱ ǰȱ ǯȱ ȱ ȱ ¢ȱ ȱ ȱ ȱ ȱ ǰȱ ȱ ¢ȱ ȱ ȱ ȱ ĵǰȱ ȱǰȱǰȱȱǯȱŝǯśȱŝȦŚȱȱŗŖȱŝȦŚȱȱǰȱ ȱȱȱŝǯśȱ śȦŚȱȱȱȱ ȱǰȱ¢ȱ ȱȱȱȱȱȱȱȱǻěȱ ȱȱǼǯȱŖȬŚȱȱǯ Rf Qpyh Qfy Qebs Hybrid units: Qpye - Qes2 over Qpy Qpe - Qes2 over Qp Qfay - Qayb over Qfi Rw Quaternary 3741000 post-Santa Fe Group (inset alluvium and associated eolian deposits) Rio Grande fluvial alluvium 1935 Rf £ȱ ȱ ȱ ȱ ȱ ǻŘŖŖŘǰȱ ŘŖŖŝǼDzȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ¢ȱȱǻŗşŜśǼȱȱ¢ȱǻŗşşŗǼǯ ȱ ȱ ȱ ǻ ǼDZȱ ȱ ȱ ȱ ęȱ ¢ȱ ȱ ȱ ¢ȱ ȱ ęȱ broad shallow swales. Very poorly exposed, but surface sands are lithic- and plagioclase-rich, with rare ȱ ȱ ȱ ȱ ȱ ȱ ĵǰȱ ȱ ȱ ȱ ęȱ ȱ ȱ ȱ ȱ ȱ ǯȱśȱŜȦřȱȱŝǯśȱŜȦŚȱȱǯȱŖȬŗǵȱȱǯ Rsb 2005 Qes2 Qfy 3742000 Qpe Qpe Qpm QTsf Rf Hf Qpye Ȭȱ¢ ȱȱ ȱ (calendar years give ages of Rio Grande fluvial alluvium units) Qec Qpy Qpm Qes2 af ȱ Qpy Qpyh recent A Qpy Qpf Pre-Santa Fe Group units ȱ ȱ ǰȱ ǰȱ ȱ ¢ȱ ȱ ¢ȱ ȱ ȱ ǻȱ ȱ ȱ ǼDZȱȱȱȱȱȱȱ¢ȱȱȱǻȱȱŘȱǼȱȱ Qes-like eolian sand. See descriptions of Qp units and Qes2 for details. Qpy Hf 3743000 ȱ ȱ ȱ ȱ ǻȱ ǵǼDZȱ ȱ ȱ ¢ȱ ¢¢ȱ ¢ȱ ęȱ ȱ medium sands with carbonate and gypsum accumulation. Very poorly exposed, but appears to be ȱ ȱśȬŗśƖȱęȱȱ ȱȱȱǰȱ ȱȱȱ ȱȱĴȱ ȱ ȱ ȱ ¢ ȱ ¢ȱ ȱ ȱ ¢ǯȱ ȱ ȱ ȱ ȱ ȱ £ȱ ¢ǰȱ ȱ ȱ ¢ȱ£ȱ¢ǯȱȱȱȱȱȱȱȱ¢ȱȱȱ¢ȱȱȱ řȱȱśȱȱȱȱȱǯȱŖȬśǵȱȱǯ 3743000 Qpo QTsf Hmf ȱ ȱ ¢ȱ ¢Ȭȱ ȱ ǻȱ ǵȱ ȱ ǼDZȱ ȱ ȱ ¢ǰȱ ¢ȱ ęȱȱȱǯȱȱȱȱȱȱȱȱȱȱȱȱȱǯȱȱ ęȱȱǯȱŖȬŗȱȱǯ QpyQph Qesr Qfy ¢ȱ ȱ ȱ ȱ ȱ ¢ȱ ȱ ¢ȱ ȱ ȱ ǻ ȱ ȱ ǼDZȱ ȱȱȱȱ¢ȱȱȱǻȱȱŘȱǼȱȱŘȬȱȱǯȱȱ description of Qpy and Qes2 for more details. QTsp Qeb? Qayb Qfy 3744000 Qec Qaf ȱ ȱȱȱǰȱȱȱǻȱȱ ȱǼDZȱȱ ȱȱ ȱ conglomerates. Poorly exposed, but typically a cobble conglomerate along the east edge grading to ȱȱȱȱȱ ǯȱȱȱ¢ȱǰȱȱȱǰȱȱ¢ȱȱ andesitic porphyry compositions, with sparse red siltstones and limestones. The top is marked by a Stage IV or V carbonate horizon that is exposed along the east edge of the quadrangle. Thickness unknown, but likely comparable to QTsf. ¢ȱ ȱȱȱȱǰȱȱǻ ȱȱ ǼDZȱȱȱ¢ȱ ȱȱȱȱęȱȱȱǯȱȱȱȱȱȱȱȱǯ ȱ ȱ ¢ȱ ȱ ǻȱ ǵȱ ȱ ǼDZȱ ȱ ȱ ¢ǰȱ ¢ȱ ęȱ ȱ ȱȱ ȱȱȱǯȱȱȱȱȱȱȱ¢ȱȱȱŗȱȱ¢ȱȱ ǯȱŗŖȱŝȦŚȱȱŜȦŚȱȱǰȱȱȱǯȱŖȬŗȱȱǯ 2012 Hf 3744000 3742000 Qpy Qes1 Qph Qpf Qfy ȱ ȱ ȱ ȱ ǰȱ Ěȱ ȱ ǻȱ ȱ ȱ ǼDZȱ ȱ ¢ȱ ¢ȱ sandstones, pale brown siltstones, and light greenish gray mudstones of the ancestral Rio Grande. ȱȱ¢ȱȱ¢ȱǰȱ¢ȱȱǰȱȱȱǰȱ ȱȱĵǰȱ ȱǰȱȱȱǰȱȱȱǯȱȱęȱȱȱ¢ȱǰȱ ȱȱǰȱȱȱȱǰȱȱĵǯȱȱ ǰȱȱȱȱŜŖȱ ȱȱȱȱ¡Dzȱȱ ȱ ȱ¢ȱȱȱřŚŖȱȱȱȱǻǰȱǯȱǯǼǯ Qes1 Qes2 Holocene historic af Qpm Qes1 2 Qay1 Rf ȱȱȱȱȱȱȱȱȱȱȱȱȱȱ ¢ȱ ȱ ȱ ȱ ǻ ǼDZȱ ȱ ȱ ȱ ȱ ¢ȱ ȱ ȱ ȱ ¢ȱ ǯȱ ¢ȱ ȱ ȱ ȱ ǰȱ ȱ ȱ ȱ ȱ ȱ ȱ £ȱ ǯȱ ȱ ȱ ȱ ¡¢ȱ ȱ ǰȱ ȱ ȱ ȱ Ȭȱ ȱ Ȭǯȱȱ ȱ ȱ ȱ ŗȱ ȱ řȱ ȱ ȱ ȱ ǯȱȱ ǰȱ ¢ȱ includes an erosional surface with indistinguishable tread height and comparable underlying ȱȱȱŖǯŘśȬŖǯśȱȱȱȱȱȱ¢ȱȱ¢ȱȱȱȱ¡ǯȱ ȱȱŗŖȱśȦřȱȱŞȦřȱǯȱŖȬŘȱȱǯ Qp Qes/QTsp? Qaf Upper Santa Fe Group units ȱ Ȭȱȱȱǻ ȱȱ ǼDZȱȱ¢ȱȱȱȱ ȱ¢ȱ ¢¢ȱȱȱȱȱȱȱǯȱ¢ȱȱȱ ȱȱȱȱȱȱ £ȱǰȱ ȱȱȱȱ£ǯȱȱǻśȱśȦŚȱȱŜȦŚǼȱȱȱǰȱ ¢ȱǻŗŖȱŝȦŘǼȱȱȱǯȱ¢ȱȱȱȱȱȱȱǰȱ¢ȱ¡ȱ¢ȱǯȱŖȬŗȱȱǯ ȱ ȱĚȱȱǻȱǼDZȱȱ ȱ¢ȱęȱȱȱȱȱȱȱ ȱ ȱ ȱ ȱ ȱ ŘŚȱ ȱ Śŗȱ ȱ ȱ ȱ ȱ ȱ ȱ ǯȱ ¢ȱ ȱȱ¡ǰȱ¢ȱȱȱȱȱȱȱ¢ȱȱȱȱ¢ȱ ȱ¢ȱǯȱŗŖȱŞȦřȱȱǰȱȱȱȱȱ¢ȱȱȱȱȱȱȱ ȱ¢ȱȱȱȱȱȱȱȱȱȱȱ£ǯȱŘȬŗŖȱȱǯ Qpm Qpm Qay1 Rf 3746000 Ȧȏȱ ȱǰȱǰȱȱȱDZȱȱȱȱȱ ȱȱȱȱȱ ȱȱȱȱǀŖǯśȱȱ ȱȱȱȱȱȱǯȱȱȱȱȱȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ǰȱ ȱ fragments of white carbonate horizon at the surface or in burrows, exposure of the older sediments ¢ǰȱȱȱȱȱȱȱȱȬȱǯȱȱ¢ȱȱȱ ȱęȱȱȱȱȱȱȱȱ¢ȱȱǯ ȱ ȱ ¢Ȭȱ ȱ ǻ ȱ ȱ ǼDZȱ ȱ ȱ ¢ǰȱ ¢ȱ ęȱ ȱ ȱ ȱ ȱ ȱȱȱȱȱȱȱǯȱ¡ǰȱȱȱȱȱȱ is mainly silty sand with up to 30% pebbles of mainly andesitic lithologies. Sand is lithic- and plagioclase-rich. ȱȱŗŖȱŜȦŚȱȱŝȦřȱǯȱȱȱȱęȱȱǯȱŖȬŗȱȱǯ ¢ȱ ȱ Ěȱ ǰȱ ȱ ¢ȱ ¢ȱ ȱ ȱ ǻȱ ȱ ȱ ǼDZȱ ȱ Ěȱ ȱ ȱ ¢ȱ ȱ ¢ȱ ȱ ȱ ȱ ȱ ǯȱ Generally looks like Qayb at the surface, but with weak meander scroll textures apparent on aerial imagery ȱȱĚȱȱȱȱ¢ȱǯȱȱȱȱ¢ȱȱęȱȱȱǯ Qes/QTsp? Qes1 ŗȱ ȱȱȱȱǻȱǵȱȱ ȱ ǼDZȱȱ ȱȱ ȱȱ ¢ȱȱȱ ȱ¢ȱęȱȱȱǯȱ¢ȱȱ¢ȱǰȱȱȱ ȱ ȱ ȱ ȱ ȱ ĵǰȱ ȱ ǰȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱǯȱȱȱȱƸȱȱ£ȱȱ ȱȱȱǻśȱśȦŚȱȱ śȦŜǼȱ ȱ£ǯȱȱȱŝǯśȱśȦŚȱȱŝǯśȱŜȦŜȱȱȱȱǯȱ¢ȱ¢ȱȱ ȱȱ¡ǰȱȱȱȱȱȱȱȱ Ȭȱ ȱȱȱ¢ǯȱŖȬŗȱȱǯ ȱ ȱȱȱǻȱ ǵȱȱ ǼDZȱ¢ȱȱ ȱǰȱǰȱȱȱ ȱȱȱǰȱȱ ȱȱȱ ȱȱȱȱŗȱȱȱȱǯȱ¢ȱ ¢ȱ ȱ ¢ȱ ȱ ȱ ȱ ȱ ǯȱ ȱ ȱ ȱ ¢ȱ ȱ ȱ Ȭǰȱ¢ȱȱȱȱǰȱ ȱȱȱȱȱȱ¡ǯȱ¡Ȭȱ ȱȱ¢ȱęȱȱȱȱ ȱȱǯȱȱȱŗŖȱŝȦřȱȱŞȦŘǯȱŖȬŗǯśȱȱǯ ęȱ ȱĚȱȱǻȱǵǼDZȱǰȱǰȱȱȱȱ¢ȱȱ ȱȱ ȱȱřȱȱŜȱȱȱȱȱǯȱ¢ȱȱȱŘŖŖśȱȱŘŖŖşȱ ¢ǰȱ ȱ ȱȱȱ¡ǯȱŖȬŜǵȱȱǯ Qph Qpm Qes1 Qaf Qfay Qfy Qpo Qpm Qay1? Hmf Qes/QTsp? .? Řȱ ȱȱȱȱǻȱ ǼDZȱ¢ȱȱ ȱ¢ȱȱǰȱęȱȱȱ ǯȱ ¢ȱ ȱ ¢ȱ ǰȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ĵȱ ȱ ǰȱȱȱȱȱȱȱȱǯȱȱȱȱȱǯȱ ȱȱŗŖȱŜȦŚȱȱŝȦŚȱǰȱ ȱȱȱȱŝǯśȱŜȦŚȱȱŝȦřǯȱȱ¢ȱ ȱȱ ȱȱ¡ǰȱȱȱǻŚȱȱŗŖȱȱǼȱȱȬȱǻȱȱǼȱ ǰȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ǰȱ ȱ ȱ ȱ ǯȱ ¢ǰȱ ǰȱ ŗȬȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ǰȱ ȱŘȱȱ¢ȱŗǯȱŖȬŜǵȱȱǯ ȏȱ ȱȱǻȱȱȱ ǼDZȱǰȱǰȱȱȱȱȱȱȱ ȱȱȱȱȱĚǯȱ¢ȱȱȱȱȱȱȱ£ǰȱ¢ǰȱ ȱȱȱȱȱȱȱȱȱǯȱȱȱ¢ȱȱ from the Cerro de la Campana-area to the immediate east of the quadrangle. Surface sediments of all ȏȱȱȱ ȱ¢ȱȱ¢ȱȱ¢ȱȱǯ ¢ȱ ȱĚȱȱǻ ȱȱ ǼDZȱǰȱǰȱȱȱȱȱȱȱȱ ¢ȱȱȱĚȱǯȱȱ¢ȱęȱ¢ȱȱȱȱ ȱ ǰȱ ȱ ȱ ȱ ǯȱ ȱ ǰȱ ȱ ȱ ȱ ȱ ¡ǯȱȱęȱȱǯȱŖȬŘȱȱǯ 3747000 Qpm Rf Hmf Qp Qpyh Qpy Qes/QTsp? Qpy Qpo Qpye Qpm Qpm Hmf Qpo Qpy Qpy Qpy ȱ ȱȱȱǻȱ ǼDZȱ¢ȱȱ ȱȱęȱȱȱ ȱ dunes accumulating around bushes. Sands are moderately sorted, subangular to rounded, with ȱȱȱǰȱǰȱȱǰȱȱĵǯȱȱȱȱŖǯśȱȱȱ ŗǯśȱȱȱȱȱȱȱǯȱȱȱǯȱŖȬŗǯśȱȱǯ ȱ ȱ ȱ Ěȱ ȱ ǻ Ȭǰȱ ŗşřśȬŘŖŖŗǼDZȱ ǰȱ ǰȱ ȱ ȱ ȱ ȱ ȱ ȱ ǯȱ¢ȱ ȱȱȱŘŖŖśȱȱŘŖŖşȱ¢ǰȱ ȱȱȱ¡ȱȱȱȱ ǯȱȱ¢ȱȱȱȱǻŘŖŖřǼȱȱȱ ȱȱȱȱŗşřśǯȱŖȬŘȱȱǯ Qes1 Qpo QTsp Qpyh Qpm Qpm Qpm Qpm Qpm Qpyh Qpy Qpm Qaf Rsb Qfi Qpye Qes2 Qes/QTsp? Qpf Qpm Rsb 3747000 Qes/QTsp? Qes1 Qes1 Hf Qes1 Qes2 Qaf Qah Hf ȱ ȱĚȱȱǻǰȱŘŖŖŗȱȱŘŖŖśǼDZȱǰȱǰȱȱȱȱȱȱȱǯȱ ¢ȱ ȱ ȱ ŘŖŖśȱ ¢ǰȱ ¢ȱ ȱ ȱ ȱ ŘŖŖşȱ ¢ǯȱ ȱ ¢ȱ ȱ ȱ ȱǻŘŖŖřǼȱȱȱ ȱȱȱȱŘŖŖŗǯȱŖȬŘȱȱǯ Qsa ȱ ȱȱȱȱǻȱ ǼDZȱȱ ȱȱęȱȱȱȬȱ topographically high bands. Sands are moderately sorted, subrounded to rounded, with abundant ȱȱĵǰȱȱȱȱȱǰȱȱȱǯȱȱȱŗŖȱŜȦŚȱȱ ŝȦŚȱǯȱȱȱȱȱȱȱȱȱŘȱȱǯȱŖȬŚǵȱȱǯ ¢ŗȱ ȱ¢ȱȱǻȱǼDZȱȱ¢ȱęȱȱȱȱ ȱȱ ǯȱ¢ȱ¢ȱ¡ǰȱȱȱȱȱȱȱȱȱȱȱȱ¢ȱ¢ȱȱ ¢Řǰȱ ȱ ȱ ȱ řȱ ȱ ŝȱ ȱ ȱ ȱ ȱ ǯȱ ȱ ȱ ȱ ¢ȱ ęȱ ȱ ȱȱ ȱȱȱŗŖȱŝȦřǰȱȱȱȱȱȱ¢ǰȱȱȱȱȱȱ¢ȱ ¢ǯȱŖȬřǵȱȱǯ ȱ ȱĚȱȱǻǰȱŘŖŖśȱȱŘŖŖşǼDZȱȱǰȱǰȱȱȱȱȱȱȱǯȱ ȱȱȱȱȱŘŖŖśȱ¢ǰȱ¢ȱȱȱŘŖŖşȱ¢ǯȱŖȬŘȱȱǯ 3748000 Qes/QTsp? Qfo Qfy Qfy ȱ ȱȱǻǰȱȱȱŘŖŖşȱȱ¢ǼDZȱȱȱȱȱȱȱǯȱȱ ȱǰȱǰȱȱȱǯȱŖȬŘȱȱǯ Qp Qsa QTsf ȱ ȱ ȱǻȱ ǼDZȱĚ¢ȱ ǰȱȱȱȱȱ ȱȱ ȱȱ ȱǰȱȱȱ ȱ ȱ ȱǯȱ¢ȱȬȱ blowouts are shown. No thickness, as these are mainly erosional features. ¢ȱ ȱ ȱ ¢ȱ ¢ȱ ȱ ǻȱ ǵȱ ȱ ǼDZȱ ȱ ȱ ¢ȱ ęȱ ȱ ȱȱǯȱȱȱȱȱȱȱȱȱȱȱǰȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ¢ȱ ¢Řȱ ȱ ȱ ȱ ¢ȱ ȱ ȱ ¢ŗǯȱ ȱ ǰȱ ȱ ȱ ȱȱȱȱ¢Řȱǻȱȱȱȱǰȱ¢ȱȱ ǼǯȱȱȱŗŖȱŜȦŚȱ measured. 0-3 m thick. ȱ ȱ ǻǰȱ ȱ ȱ ŘŖŖşȱ ȱ ¢ǼDZȱȱ ȱ ȱ ȱ ȱ ǯȱ ȱ ȱ ǰȱǰȱǰȱȱȱǯȱȱȱȱǯȱŖȬŘȱȱǯ QTsf QTsf Qes1 ȱȱ 3749000 Qpyh 5 Qay2 ȱ ęȱ ęȱ ǻ ǰȱ ŖȬŗŖŖȱ ¢ȱ ǼDZȱ ȱ ǰȱ ǰȱ ǰȱ ȱ ¢ȱ ȱ ęȱȱȱǯȱ¢ȱȱȱȱǯȱŖȬřȱȱǯȱȱȱĚȱ lt f au r Fite athe of C 0 02 ) (2 Qaf t Rw Hmf Qfy Qpyh au l 3749000 QTsf Qfy af Qfi Qayb ęȱ 33°52'30"N Qpyh ry f Qah Qes1 Qes1 Qsa ete Qay1 Qah Qay2 Qfy Qay1 Qay2 m Ce Qayb Hmf Rf Hf Qay1 ȱ Ȭȱ¢ȱȱǻ ȱȱ ǵǼDZȱȱ ȱ¢ȱǯȱȱ¢ȱȱ ȱȱȱȱǯȱ¢ȱȱȱȱȱȱȱǰȱ¢ȱ¡ȱ¢ȱǯȱȱȱ ȱęȱȱǯȱŖȬŗǵȱȱǯ ¢Řȱ ȱ¢ȱȱǻ ǼDZȱȱ ȱ¢ȱ¢ȱęȱȱȱȱ ȱ ȱ ȱ ȱ ǯȱ ȱ ȱ ȱ ȱ ȱ ŗǯśȱ ȱ Řȱ ȱ ȱ ȱ ȱ ǰȱȱȱȱȱȱ¢ǯȱ¢ȱȱŗŖȱŜȦŚǰȱ ȱŝǯśȱŝȦŚȱ ȱ£ǰȱȱȱȱ Stage I Bk horizons. 0-3 m thick. Post-Santa Fe Group units QTsf QTsf Qes1 (Qpye) Qes2 Qpy Qp Qesr Qes2 Qes1 Qes2 Qes1 Qes1 QpyhQp Qpyh Qp Qpyh Qp QTsp QTsp B' Qpyh QTsp Kgc Kmd QTsp QTsf Notes for cross-section B-B': 1000 m -Vertical scale is 5X horizontal scale. -Thickness of post-Santa Fe Group units are unconstrained and exaggerated. -Fite fault and Mesozoic strata at NNE end are projected from Cather (2002, 2007). -Permian strata may be present at ~90 m depth in footwall of Mike Well fault; Weir (1965) and Roybal (1991) both suggest the Mike well may terminate in the Yeso Group. -post-Santa Fe Group units defined as eolian sand overlying another unit are indicated in parantheses above the cross-section; eolian sands and underlying units are shown separately within the cross-section. Fite fault 330000 ault 329000 Fite f 328000 Qp 327000 Qa 106°52'30"W 326000 Kth
