Pub Date : 2017-04-07DOI: 10.1130/abs/2016AM-285280
S. Farnsworth-Pinkerton, N. McMillan, B. Dutrow, D. Henry
{"title":"Change in Provenance of Proterozoic Metasedimentary Rocks in the Picuris Mountains Based on Laser-Induced Breakdown Spectroscopy (libs) of Detrital Tourmaline","authors":"S. Farnsworth-Pinkerton, N. McMillan, B. Dutrow, D. Henry","doi":"10.1130/abs/2016AM-285280","DOIUrl":"https://doi.org/10.1130/abs/2016AM-285280","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125310986","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}
Pub Date : 2017-04-07DOI: 10.1130/abs/2016AM-285478
T. Haskell, N. McMillan
{"title":"Correlation of Ash Flow Tuffs From the Mogollon-Datil Volcanic Field in Southwestern New Mexico Using Laser-Induced Breakdown Spectroscopy (libs): an Analysis of Sanidine Phenocrysts","authors":"T. Haskell, N. McMillan","doi":"10.1130/abs/2016AM-285478","DOIUrl":"https://doi.org/10.1130/abs/2016AM-285478","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125416093","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}
The Mancos Shale (Upper Cretaceous) covers approximately 12,000 mi in the San Juan Basin of northwestern New Mexico and southwestern Colorado. The Mancos is subdivided into two formations, the Upper Mancos Shale and the Lower Mancos Shale. The Upper Mancos is 900 to 1600 ft thick in the San Juan Basin. The Upper Mancos has been productive of oil and natural gas from sandstones and shales. The Upper Mancos Shale contains three plays: the Tocito marine bar play, the Naturally fractured Mancos shale play, and the Offshore Mancos shale play. The Tocito play is a conventional oil play productive from sandstones in the lower part of the Upper Mancos. Reservoirs are northwest-southeast-trending shoestring sandstones on the southwestern flank of the basin. The Naturally fractured Mancos shale play is located along the southeastern and northwestern flanks of the basin where Laramide tectonic uplift that formed the present-day basin outline initiated fracturing of the more brittle lithologies within the Upper Mancos. Open fractures formed prolific reservoirs produced by vertical wells. The Offshore Mancos shale play is located northeast of, or paleo-offshore of, the Tocito marine bars. This is the modern unconventional play. The play extends north from the Tocito marine bars into the basin axis. Reservoir intervals are organic-rich marine shales with laminations and very thin beds of very fine-grained sandstones. Percentage and thickness of sandstone beds decrease to the northeast with increasing distance from the paleoshoreline. Recent exploration is within the Mancos C zone, which constitutes the lowermost 75 to 470 ft of the Upper Mancos Shale. The Mancos C thickens to the northeast. Upper Mancos shales are both source rocks and reservoirs in the Offshore Mancos shale play. Along the southwestern flank of the basin, shales within the Mancos C are thermally immature. Peak oil generation in the Mancos C was attained along a trend just northeast of the Tocito marine bar reservoirs. The dry gas window is present in the deeper northern part of the basin. TOC of Mancos C shales ranges from 0.5 to 3.2%, averaging 1.8%. Kerogens are a mixture of oil-prone, gas-prone, and inertinitic types, with oil-prone types dominant. Production has been marginally economic oil and gas from scattered historic vertical wells. Most recent exploratory wells have been drilled horizontally with production exceeding that attained in vertical wells by an average factor of 9.4.
{"title":"The Upper Mancos Shale in the San Juan Basin: Three Oil and Gas Plays, Conventional and Unconventional","authors":"R. Broadhead","doi":"10.56577/sm-2017.488","DOIUrl":"https://doi.org/10.56577/sm-2017.488","url":null,"abstract":"The Mancos Shale (Upper Cretaceous) covers approximately 12,000 mi in the San Juan Basin of northwestern New Mexico and southwestern Colorado. The Mancos is subdivided into two formations, the Upper Mancos Shale and the Lower Mancos Shale. The Upper Mancos is 900 to 1600 ft thick in the San Juan Basin. The Upper Mancos has been productive of oil and natural gas from sandstones and shales. The Upper Mancos Shale contains three plays: the Tocito marine bar play, the Naturally fractured Mancos shale play, and the Offshore Mancos shale play. The Tocito play is a conventional oil play productive from sandstones in the lower part of the Upper Mancos. Reservoirs are northwest-southeast-trending shoestring sandstones on the southwestern flank of the basin. The Naturally fractured Mancos shale play is located along the southeastern and northwestern flanks of the basin where Laramide tectonic uplift that formed the present-day basin outline initiated fracturing of the more brittle lithologies within the Upper Mancos. Open fractures formed prolific reservoirs produced by vertical wells. The Offshore Mancos shale play is located northeast of, or paleo-offshore of, the Tocito marine bars. This is the modern unconventional play. The play extends north from the Tocito marine bars into the basin axis. Reservoir intervals are organic-rich marine shales with laminations and very thin beds of very fine-grained sandstones. Percentage and thickness of sandstone beds decrease to the northeast with increasing distance from the paleoshoreline. Recent exploration is within the Mancos C zone, which constitutes the lowermost 75 to 470 ft of the Upper Mancos Shale. The Mancos C thickens to the northeast. Upper Mancos shales are both source rocks and reservoirs in the Offshore Mancos shale play. Along the southwestern flank of the basin, shales within the Mancos C are thermally immature. Peak oil generation in the Mancos C was attained along a trend just northeast of the Tocito marine bar reservoirs. The dry gas window is present in the deeper northern part of the basin. TOC of Mancos C shales ranges from 0.5 to 3.2%, averaging 1.8%. Kerogens are a mixture of oil-prone, gas-prone, and inertinitic types, with oil-prone types dominant. Production has been marginally economic oil and gas from scattered historic vertical wells. Most recent exploratory wells have been drilled horizontally with production exceeding that attained in vertical wells by an average factor of 9.4.","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117131802","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 Fusulind Eowaeringella and the Desmoinesian-Missourian Boundary in Central New Mexico: Reexamination of the Gotera Canyon Section, Northern Manzano Mountains","authors":"B. Allen, S. Lucas","doi":"10.56577/sm-2017.512","DOIUrl":"https://doi.org/10.56577/sm-2017.512","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129770375","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":"A Model for Socorro Magma Body Emplacement","authors":"J. V. van Wijk, S. Yao, G. Axen","doi":"10.56577/sm-2017.549","DOIUrl":"https://doi.org/10.56577/sm-2017.549","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126771879","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}
P. Longmire, V. McLemore, D. McQuillan, S. Yanicak, D. Vaniman
{"title":"Geochemical Processes Controlling Transport and Deposition of Uranium, Española Basin, New Mexico","authors":"P. Longmire, V. McLemore, D. McQuillan, S. Yanicak, D. Vaniman","doi":"10.56577/sm-2017.499","DOIUrl":"https://doi.org/10.56577/sm-2017.499","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132348259","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 Characterization of Uranium Mobility at the Jeter Mine, Ladron Mountain Mine District, Socorro County, New Mexico","authors":"A. Winton, I. Walder, B. Frey","doi":"10.56577/sm-2017.546","DOIUrl":"https://doi.org/10.56577/sm-2017.546","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134291533","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":"Uranium Resource Potential in New Mexico","authors":"V. McLemore, John Asafo-Akowuah","doi":"10.56577/sm-2017.527","DOIUrl":"https://doi.org/10.56577/sm-2017.527","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124702759","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 Onset of Rhyolite Volcanism and Subsequent Collapse in the Schoolhouse Mountain Caldera, Mogollon-Datil Volcanic Field, Southwest New Mexico","authors":"V. Swenton, J. Amato, T. Jonell, W. Mcintosh","doi":"10.56577/sm-2017.502","DOIUrl":"https://doi.org/10.56577/sm-2017.502","url":null,"abstract":"","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127732765","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}
At Cerro de Cristo Rey in Doña Ana County, southern New Mexico, an ~ 350 m thick section of Cretaceous strata ranges in age from late Albian to middle Cenomanian. Nautiloids are rare in these strata and were collected from the upper Albian Smeltertown and Muleros formations. Five nautiloids, all assigned to Cymatoceras cf. C. loeblichi , are in the collections of the New Mexico Museum of Natural History (NMMNH). NMMNH P-50940 (179 mm in diameter), from the Smeltertown Formation, is a complete, somewhat dorso-ventrally crushed adult mold that has a large and broadly rounded conch with prominent ribs that are slightly sigmoidal on the flanks and that form fairly deep ventral sinuses, as in Cymatoceras (Miller and Harris, 1945, p. 3). The ribs bifurcate on the flanks and are low, flattened, closely-spaced and separated by narrow interspaces. The ventral sinus is almost V-shaped. The shell is wider than high and involute. The suture is simple and has a shallow lateral lobe. Cymatoceras hilli (Shattuck) and Paracymatoceras texanum (Shumard), both of which occur in association with C. loeblichi , have more strongly sinuous sutures and narrower conchs (Miller and Harris, 1945, p. 7). P-50973 (136 mm in diameter), from the Muleros Formation, is a mold of an uncrushed, adult phragmocone that has features similar to P-50940, but the conch is not as broad. P-50974, also from the Muleros Formation, encompasses three moderately-preserved specimens. The smallest (56 mm in diameter), which is an inner whorl, has the narrowest conch. The largest (119 mm in diameter), which is a laterally crushed whorl, exhibits some of the above features, including some preserved ribbing. The third specimen (79 mm in diameter), a juvenile whorl, has the broadest conch. The NMMNH specimens are tentatively assigned to Cymatoceras loeblichi on the basis of their relatively broad conchs and only slightly sinuous sutures. Miller and Harris (1945, p. 6) state that the ornamentation on the type specimens is not too well preserved, “but the sinuous transverse ribs do not seem to be increased in number by bifurcation or implantation.” However, they further mention that C. loeblichi rather closely resembles C. neohispanicum (Burckhardt), from the middle Aptian of Mexico and lower Albian of New Mexico, in size, shape and ornamentation of conch (Miller and Harris, 1945, p. 7). C. neohispanicum and two of the Cristo Rey specimens of C. cf. C. loeblichi that preserve sufficient ribbing, demonstrate bifurcating ribs. The nautiloid from the Smeltertown is in the Mortoniceras equidistans Zone and the nautiloids from the Muleros are in the Drakeoceras lasswitzi Zone. Both zones are late Albian in age. The type specimens of Cymatoceras loeblichi came from the Albian-Cenomanian Washita Group of north-central Texas. This is the first report of the rare nautiloid C. loeblichi from New Mexico.
在新墨西哥州南部Doña Ana County的Cerro de Cristo Rey，有一段厚约350 m的白垩纪地层，其年代从Albian晚期到Cenomanian中期不等。鹦鹉螺在这些地层中是罕见的，它们是在上Albian的Smeltertown和Muleros地层中收集到的。新墨西哥自然历史博物馆(NMMNH)收藏了5只鹦鹉螺，它们都属于Cymatoceras cf. C. loeblichi。NMMNH p -50940(直径179毫米)，来自Smeltertown组，是一个完整的，有点背腹压碎的成虫，有一个大而宽的圆形海螺，突出的肋在侧面略呈s形，形成相当深的腹窦，就像Cymatoceras一样(Miller和Harris, 1945，第3页)。肋在侧面分叉，低矮，扁平，间距紧密，由狭窄的间隙隔开。腹窦几乎呈v形。壳宽过高，渐开线。缝合线简单，外侧叶浅。与C. loeblichi相关的Cymatoceras hilli (Shattuck)和Paracymatoceras texanum (Shumard)都有更强的弯曲缝线和更窄的海螺(Miller和Harris, 1945，第7页)。来自Muleros组的p -50973(直径136毫米)是未压碎的成年片螺的模具，具有与p -50940相似的特征，但海螺没有那么宽。P-50974也来自Muleros组，包括三个保存较好的标本。最小的(直径56毫米)是一个内螺纹，有最窄的海螺。最大的(直径119毫米)是一个横向破碎的螺旋，具有上述一些特征，包括一些保存完好的肋骨。第三个标本(直径79毫米)是一个幼螺，螺壳最宽。NMMNH标本暂定为Cymatoceras loeblichi，基于它们相对较宽的螺壳和只有轻微弯曲的缝合线。Miller和Harris(1945，第6页)指出，模式标本上的纹饰保存得不太好，“但弯曲的横肋似乎没有因分叉或植入而增加数量。”然而，他们进一步提到，C. loeblichi在海螺的大小、形状和纹饰方面与来自墨西哥阿普tian中部和新墨西哥州Albian下部的C. neohispanicum (Burckhardt)非常相似(Miller和Harris, 1945，第7页)。C. neohispanicum和两个保留了足够肋骨的C. cf. C. loeblichi的Cristo Rey标本显示出分叉的肋骨。来自Smeltertown的鹦鹉螺类位于Mortoniceras equidistans带，而来自Muleros的鹦鹉螺类位于Drakeoceras lasasswitzi带。这两个区域都属于晚阿尔比安时期。loeblichi Cymatoceras的模式标本来自德克萨斯州中北部的Albian-Cenomanian Washita群。这是新墨西哥州首次报道的罕见鹦鹉螺。
{"title":"Lower Cretaceous (Upper Albian) Nautiloids From Cerro De Cristo Rey, Doña Ana County, New Mexico","authors":"P. Sealey, S. Lucas, K. Durney","doi":"10.56577/sm-2017.503","DOIUrl":"https://doi.org/10.56577/sm-2017.503","url":null,"abstract":"At Cerro de Cristo Rey in Doña Ana County, southern New Mexico, an ~ 350 m thick section of Cretaceous strata ranges in age from late Albian to middle Cenomanian. Nautiloids are rare in these strata and were collected from the upper Albian Smeltertown and Muleros formations. Five nautiloids, all assigned to Cymatoceras cf. C. loeblichi , are in the collections of the New Mexico Museum of Natural History (NMMNH). NMMNH P-50940 (179 mm in diameter), from the Smeltertown Formation, is a complete, somewhat dorso-ventrally crushed adult mold that has a large and broadly rounded conch with prominent ribs that are slightly sigmoidal on the flanks and that form fairly deep ventral sinuses, as in Cymatoceras (Miller and Harris, 1945, p. 3). The ribs bifurcate on the flanks and are low, flattened, closely-spaced and separated by narrow interspaces. The ventral sinus is almost V-shaped. The shell is wider than high and involute. The suture is simple and has a shallow lateral lobe. Cymatoceras hilli (Shattuck) and Paracymatoceras texanum (Shumard), both of which occur in association with C. loeblichi , have more strongly sinuous sutures and narrower conchs (Miller and Harris, 1945, p. 7). P-50973 (136 mm in diameter), from the Muleros Formation, is a mold of an uncrushed, adult phragmocone that has features similar to P-50940, but the conch is not as broad. P-50974, also from the Muleros Formation, encompasses three moderately-preserved specimens. The smallest (56 mm in diameter), which is an inner whorl, has the narrowest conch. The largest (119 mm in diameter), which is a laterally crushed whorl, exhibits some of the above features, including some preserved ribbing. The third specimen (79 mm in diameter), a juvenile whorl, has the broadest conch. The NMMNH specimens are tentatively assigned to Cymatoceras loeblichi on the basis of their relatively broad conchs and only slightly sinuous sutures. Miller and Harris (1945, p. 6) state that the ornamentation on the type specimens is not too well preserved, “but the sinuous transverse ribs do not seem to be increased in number by bifurcation or implantation.” However, they further mention that C. loeblichi rather closely resembles C. neohispanicum (Burckhardt), from the middle Aptian of Mexico and lower Albian of New Mexico, in size, shape and ornamentation of conch (Miller and Harris, 1945, p. 7). C. neohispanicum and two of the Cristo Rey specimens of C. cf. C. loeblichi that preserve sufficient ribbing, demonstrate bifurcating ribs. The nautiloid from the Smeltertown is in the Mortoniceras equidistans Zone and the nautiloids from the Muleros are in the Drakeoceras lasswitzi Zone. Both zones are late Albian in age. The type specimens of Cymatoceras loeblichi came from the Albian-Cenomanian Washita Group of north-central Texas. This is the first report of the rare nautiloid C. loeblichi from New Mexico.","PeriodicalId":192881,"journal":{"name":"Proceedings Volume: \"Uranium in New Mexico: the Resource and the Legacy\", New Mexico Geological Society, 2017 Annual Spring Meeting","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116195672","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}
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