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Sedimentary Cycles in the Nugget Sandstone, Northeastern Utah 犹他州东北部纳格特砂岩的沉积旋回
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-2-2_117
L. R. High, M. Picard
{"title":"Sedimentary Cycles in the Nugget Sandstone, Northeastern Utah","authors":"L. R. High, M. Picard","doi":"10.34191/ug-2-2_117","DOIUrl":"https://doi.org/10.34191/ug-2-2_117","url":null,"abstract":"The Nugget Sandstone is one of the classic eolian sequences of the Colorado Plateau region. North of Vernal, Utah, the Nugget contains sedimentary cycles consisting of three units: (I) red mudstone, (2) siltstone, and (3) sandstone. The thinly bedded facies of the Nugget is characterized by complete cycles (1-2-3) in which the redbeds of units I and 2 are dominant. The crossstratified facies consists of alternations (2-3), and the medium- to large-scale cross-stratified sandstone of unit 3 is so well developed that it gives the facies its name. The cycles formed during wet-dry fluctuations in the climate. Units I and 2 represent small lakes, inland sebkhas, and mudflats; unit 3 represents eolian dunes. During deposition of the Nugget the general climate became more arid, and eolian dune deposition dominated, broken only rarely by local ephemeral lakes during moist periods.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"33 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":"114428029","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}
引用次数: 4
Stratigraphy of the Coal-Bearing Blackhawk Formation on North Horn Mountain, Wasatch Plateau, Utah 犹他州瓦萨奇高原北角山含煤黑鹰组地层学
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-5-1_57
Janice Johnson
{"title":"Stratigraphy of the Coal-Bearing Blackhawk Formation on North Horn Mountain, Wasatch Plateau, Utah","authors":"Janice Johnson","doi":"10.34191/ug-5-1_57","DOIUrl":"https://doi.org/10.34191/ug-5-1_57","url":null,"abstract":"Coal- bearing rocks of the Cretaceous Blackhawk Formation crop out along the eastern margin of the Wasatch Plateau in central Utah. On North Horn Mountain the Blackhawk Formation ranges from 215 to 290 meters in thickness and consists of interbedded sandstone, shale, siltstone, carbonaceous shale, coal, and limestone. The lower half of the formation, which contains the economically important coal beds, was deposited predominantly in a shallow water , wave-modified delta system. The upper half of the unit was deposited in fluvial environments of meandering streams and floodplains. The source for the clastic sediments of the Blackhawk Formation was to the west. Potentially minable coal exists in the Hiawatha and Blind Canyon beds and possibly in the Bear Canyon bed. The thickest beds were measured in the southeastern part of the study area, with 5.3 meters of the Blind Canyon bed found in one measured section. These coals are high quality and have lateral continuity, but the thickness varies and scattered wants and splits are to be found. Coal reserves on North Horn Mountain are large and should become an important source of supply for local and regional markets.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"13 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":"124253765","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}
引用次数: 0
Petroliferous Lithosomes in the Moenkopi Formation, Southern Utah 犹他州南部Moenkopi组含油气岩石岩
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-4-2_67
R. Blakey
{"title":"Petroliferous Lithosomes in the Moenkopi Formation, Southern Utah","authors":"R. Blakey","doi":"10.34191/ug-4-2_67","DOIUrl":"https://doi.org/10.34191/ug-4-2_67","url":null,"abstract":"Recent stratigraphic studies of the Triassic Moenkopi Formation suggest the possibility of important petroleum potential within the unit in southeastern and central Utah. Potential reservoir rocks include shoreline sandstone in the Black Dragon Member, carbonates in the Sin bad Limestone Member, and delta-front and delta-slope sandstone in the Torrey Member. Significant tar sand deposits have been mapped in the Moenkopi Formation in the San Rafael Swell and Circle Cliffs, and small oil and gas fields produce from the Moenkopi at the Grassy Trail and Last Chance fields respectively. These occurrences plus the large areas of bleached, nonred Moenkopi indicate that large amounts of hydrocarbons have moved through the formation. The most favorable source rocks for the Moenkopi hydrocarbons were probably the thick, dark, Paleozoic and Lower Triassic rocks west of the Cordilleran Hingeline (Wasatch Line). Thick Jurassic rocks deposited west of the Ancient Ephraim Fault may also have been important source rocks. Future successful exploration in the Moenkopi will involve locating an area where reservoir rocks and favorable structure coincide. Previous exploration involving surface structure has been rather disappointing, but recent exploration in the Rocky Mountain Region has indicated that many existing oil fields occur along major lineaments and their intersections. Major linear features are located throughout the area of study and may provide the most promising areas for future exploration.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"53 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":"124912625","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}
引用次数: 11
An Evaluation of the Effect of Proposed Lake Level and Salinity Controls on the Brines of Great Salt Lake, Utah 犹他州大盐湖拟议水位和盐度控制对盐水的影响评价
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-4-2_85
W. Gwynn
{"title":"An Evaluation of the Effect of Proposed Lake Level and Salinity Controls on the Brines of Great Salt Lake, Utah","authors":"W. Gwynn","doi":"10.34191/ug-4-2_85","DOIUrl":"https://doi.org/10.34191/ug-4-2_85","url":null,"abstract":"An analysis of the many physical and chemical characteristics of the Great Salt Lake leads to the conclusion that any measure or measures to control either lake level or brine salinity will affect both. Three proposed measures to control the lake level have been analyzed to determine their potential effect on the salinity of the lake brines. These measures are: develop additional evaporation areas adjacent to the lake; pump the lake brine to evaporation areas west of the lake; and open the Southern Pacific Railroad causeway. The first two measures will have a minimal effect on the salinity of the lake, but the third measure, opening the causeway, will greatly alter salinity.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"63 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120899283","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}
引用次数: 0
Gravity Study of the Fumarole Butte Area, Juab and Millard Counties, Utah 犹他州Juab和Millard县富玛孔丘地区的重力研究
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-5-1_37
T. Smith, K. Cook, W. J. Peeples
{"title":"Gravity Study of the Fumarole Butte Area, Juab and Millard Counties, Utah","authors":"T. Smith, K. Cook, W. J. Peeples","doi":"10.34191/ug-5-1_37","DOIUrl":"https://doi.org/10.34191/ug-5-1_37","url":null,"abstract":"A gravity survey was made in 1973 of the Fumarole Butte area, including the Crater Springs KGRA (Baker Hot Springs), located approximately 39 km (22 miles) NW of Delta, Utah. About 500 stations were taken as part of a study of geothermal exploration techniques. The region of investigation includes portions of both Juab and Millard Counties and incorporates parts of the Desert, McDowell and Drum Mountains. A simple Bouguer gravity anomaly map was computed and two-dimensional geologic models were prepared for two east-west gravity profiles. The analysis of the gravity data, in conjunction with the known geology and the results from other geophysical studies, led to the following interpretations: 1) the indication of two buried intrusive bodies - one a north north westward-trending dike lying beneath the Baker Hot Springs and the eastern margin of the Fumarole Butte lava flows and another several miles southwest of Desert Mountain; 2) the delineation of previously ' unpublished Basin and Range faults and associated grabens; and 3) the existence of a basement flexure with postulated fractures that served as conduits for the upwelling magma to reach the surface at Fumarole Butte.","PeriodicalId":398645,"journal":{"name":"Utah Geology","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":"123790160","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}
引用次数: 3
Type Locality of Walcott's Brigham Formation, Box Elder County, Utah 犹他州博克斯埃尔德县沃尔科特布里格姆组类型位置
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-3-2_117
M. L. Sorensen, M. Crittenden
{"title":"Type Locality of Walcott's Brigham Formation, Box Elder County, Utah","authors":"M. L. Sorensen, M. Crittenden","doi":"10.34191/ug-3-2_117","DOIUrl":"https://doi.org/10.34191/ug-3-2_117","url":null,"abstract":"The Brigham Formation was defined by Walcott, who gave as its type locality only the very · generalized location: \"West front of the Wasatch Range, northeast of Brigham, Box Elder County, Utah.\" In 1971 the Brigham was elevated to group rank and defined as comprising a conformable sequence of Precambrian Z and Early Cambrian rocks. Recent detailed mapping of Brigham Group rocks in and near Walcott's type area has shown that these rocks are cut by the Box Elder thrust, a fault that has removed some 1,500-3,300 feet (450-1,000 m) of Precambrian Z rocks. It is now thought that Walcott's probable type section was above the Box Elder thrust and that Walcott's type Brigham can be correlated with essentially all of the Geertsen Canyon Quartzite, an Early Cambrian(?) unit whose type section is near Huntsville, Utah, 16 miles (25 km) southeast of Brigham City","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"50 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":"127492912","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}
引用次数: 0
Earthquake Epicenters in Utah January-June 1975 1975年1月至6月犹他州的地震震中
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-3-1_67
K. Cook
{"title":"Earthquake Epicenters in Utah January-June 1975","authors":"K. Cook","doi":"10.34191/ug-3-1_67","DOIUrl":"https://doi.org/10.34191/ug-3-1_67","url":null,"abstract":"Earthquake epicenters in and near Utah for January through June 1976, with dates of occurrences and approximate Richter magnitudes, are listed below. No attempt has been made to include events that were known blasts, but to discriminate man-made events from real earthquakes is often problematical; and a few events included in the list may in fact be artificial.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"14 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":"126817168","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}
引用次数: 0
Reconnaissance Study of the Stateline Mining District, Iron County, Utah 犹他州铁县州线矿区勘察研究
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-2-1_27
K. Thomson, Lee I. Perry
{"title":"Reconnaissance Study of the Stateline Mining District, Iron County, Utah","authors":"K. Thomson, Lee I. Perry","doi":"10.34191/ug-2-1_27","DOIUrl":"https://doi.org/10.34191/ug-2-1_27","url":null,"abstract":"","PeriodicalId":398645,"journal":{"name":"Utah Geology","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":"132617140","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}
引用次数: 0
Dating of Igneous Dike, Eastern Uinta Mountains 东温塔山脉火成岩岩脉的年代测定
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-1-1_95
H. Ritzma
{"title":"Dating of Igneous Dike, Eastern Uinta Mountains","authors":"H. Ritzma","doi":"10.34191/ug-1-1_95","DOIUrl":"https://doi.org/10.34191/ug-1-1_95","url":null,"abstract":"Age of a gabbroic dike which intrudes the Precambrian metasediments of the Uinta Mountains in T. 1 S., Rs. 18 and 19 E. , Uintah County, Utah, has been determined by the K-Ar method. Analyses of the whole rock and a feldspar concentrate from it were run. The whole-rock determination gave an age of 412 ± 17 my and the feldspar concentrate 453 ± 17 my. The whole-rock determination would place the age in the uppermost Silurian; the feldspar concentrate determination would place the age as medial to uppermost Ordovician. Geochron Laboratories Division of Krueger Enterprises, Inc., Cambridge, Massachusetts, who performed the analyses, commented that this rock is at least lower Paleozoic in age, and almost certainly it is pre-Devonian.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"31 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":"115361979","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}
引用次数: 0
Approximation of Magnesium Concentration by Refractive Index Measurements in Evaporating Brines of Great Salt Lake, Utah 用折射率测量法估算犹他州大盐湖蒸发盐水中镁的浓度
Utah Geology Pub Date : 1900-01-01 DOI: 10.34191/ug-4-1_43
J. Gwynn, Paul A. Sturm
{"title":"Approximation of Magnesium Concentration by Refractive Index Measurements in Evaporating Brines of Great Salt Lake, Utah","authors":"J. Gwynn, Paul A. Sturm","doi":"10.34191/ug-4-1_43","DOIUrl":"https://doi.org/10.34191/ug-4-1_43","url":null,"abstract":"The successful recovery of salts or a concentrated brine from the Great Salt Lake requires monitoring the composition of the brine as it concentrates and precipitates salts. Because the present monitoring methods have certain limitations, an alternate procedure was investigated to determine brine concentrations. By use of a refractometer, we found that the index of refraction of a concentrating or saturated brine has a high degree of correlation with its magnesium ion concentration. This procedure is presently being employed by two lake industries and it may be applicable to other brine systems.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"52 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120816009","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}
引用次数: 0
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