The chief factor controlling currents in Great Salt Lake is inflow. In the south arm inflow from Bear River and from Farmington Bay sets up two major counterclockwise currents. In the north arm, flow through culverts in the Southern Pacific Railroad causeway induces two major northwest-flowing currents. Currents in Great Salt Lake caused by winds are rare and diminish rapidly.
{"title":"Currents of Great Salt Lake, Utah","authors":"W. Katzenberger, J. A. Whelan","doi":"10.34191/ug-2-2_103","DOIUrl":"https://doi.org/10.34191/ug-2-2_103","url":null,"abstract":"The chief factor controlling currents in Great Salt Lake is inflow. In the south arm inflow from Bear River and from Farmington Bay sets up two major counterclockwise currents. In the north arm, flow through culverts in the Southern Pacific Railroad causeway induces two major northwest-flowing currents. Currents in Great Salt Lake caused by winds are rare and diminish rapidly.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1975-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128870770","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 Great Salt Lake is a closed basin that drains a large part of northern Utah and parts of Wyoming and Idaho. The lake is a repository of all inorganic materials both suspended and dissolved that are carried by the streams flowing into the lake. Some of the salts are concentrated by several orders of magnitude in the lake over the natural concentration in the inflowing streams. It is the objective of this paper to determine if several heavy metals, specifically copper, zinc, cadmium, mercury, lead, and arsenic are also concentrating in the lake and to determine the behavior of these metals in the lake. A major obstacle to the study was the difficulty in analyzing the trace elements in the concentrated lake brines due to interference from the salts in the water. Methods for analyzing trace elements in brines were developed and are explained in detail in the paper. It was found that the concentrations of both total and dissolved metals in the lake are very low, and in the case of copper, zinc, and cadmium, are lower than the concentrations in the inflowing streams. It appears that the metals are precipitating along with clays, organics, and carbonates into the bottom sediments of the lake where anaerobic bacterial action is immobilizing the metals.
{"title":"Heavy Metals in the Great Salt Lake, Utah","authors":"P. L. Tayler, Lynn A. Hutchinson, Melvin K. Muir","doi":"10.34191/ug-4-1_19","DOIUrl":"https://doi.org/10.34191/ug-4-1_19","url":null,"abstract":"The Great Salt Lake is a closed basin that drains a large part of northern Utah and parts of Wyoming and Idaho. The lake is a repository of all inorganic materials both suspended and dissolved that are carried by the streams flowing into the lake. Some of the salts are concentrated by several orders of magnitude in the lake over the natural concentration in the inflowing streams. It is the objective of this paper to determine if several heavy metals, specifically copper, zinc, cadmium, mercury, lead, and arsenic are also concentrating in the lake and to determine the behavior of these metals in the lake. A major obstacle to the study was the difficulty in analyzing the trace elements in the concentrated lake brines due to interference from the salts in the water. Methods for analyzing trace elements in brines were developed and are explained in detail in the paper. It was found that the concentrations of both total and dissolved metals in the lake are very low, and in the case of copper, zinc, and cadmium, are lower than the concentrations in the inflowing streams. It appears that the metals are precipitating along with clays, organics, and carbonates into the bottom sediments of the lake where anaerobic bacterial action is immobilizing the metals.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"173 1 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":"124393212","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}
Utah includes large segments of three major physiographic provinces, the Colorado Plateau, Middle Rocky Mountains, and Basin and Range. Small parts of the Wyoming Basin and Columbia and Snake River Plateaus are also included. Because these provinces are all very large, it is advantageous to subdivide them into sections for description and reference. The following sections are proposed as subdivisions of the major physiographic provinces: Colorado Plateau: Uinta Basin, Book Cliffs-Roan Plateau, Mancos Shale Lowlands, Uncompahgre Extension, Salt Anticline, La Sal Mountains, Hatch Syncline, Great Sage Plain, Abajo (Blue) Mountains, Blanding Basin, Monument Upwarp, Slick-rock, Kaiparowits Plateau Escalante Benches, Grand Staircase, St. George Basin, Circle Cliffs-Teasdale Anticlines, Henry Mountains, San Rafael Swell, Green River Desert, Inner Canyonlands. Middle Rocky Mountains: Wasatch Range, Wasatch Hinterland, Clarkston Mountain, Cache Valley, Bear River Plateau-Bear Lake, Bear River, Crawford Mountains, Uinta Mountains. Wyoming Basin: Green River Basin. Basin and Range-Colorado Plateaus (Subprovince): Wasatch Plateau, Sanpete-Sevier Valleys, Gunnison Plateau-Valley Mountains, Pavant Range-Canyon Range, Tushar Volcanic, Southern High Plateaus, Tonoquints Volcanic. Basin and Range: Great Salt Lake, Lakeside, Wasatch Front Valleys, Uinta Extension, Thomas Mountains-Tintic Mountains, Sevier Desert-Black Rock Desert, Confusion Basin, Beaver Dam Range, Deep Creek Mountains, Great Salt Lake Desert, Goose Creek-Raft River (a small part is in the Columbia and Snake River Plateaus), Curlew Valley, Hansel Mountains-West Hills
犹他州包括三个主要地理省份的大部分地区，科罗拉多高原，中落基山脉，盆地和山脉。怀俄明盆地和哥伦比亚和蛇河高原的一小部分也包括在内。由于这些省份都很大，所以将它们细分为章节便于描述和参考。以下部分被提议作为主要地理省份的细分:温塔盆地、Book Cliffs-Roan高原、Mancos页岩低地、Uncompahgre延伸、盐背斜、La Sal山脉、Hatch向斜、大圣平原、Abajo(蓝色)山脉、Blanding盆地、Monument Upwarp、slickrock、Kaiparowits高原Escalante长凳、Grand Staircase、圣乔治盆地、Circle Cliffs-Teasdale背斜、Henry山脉、San Rafael Swell、绿河沙漠、内峡谷地。中部落基山脉:瓦萨奇山脉，瓦萨奇腹地，克拉克斯顿山，卡什谷，熊河高原-熊湖，熊河，克劳福德山，温塔山脉。怀俄明盆地:绿河盆地。盆地和山脉-科罗拉多高原(省):Wasatch高原，Sanpete-Sevier山谷，Gunnison高原-山谷山脉，Pavant山脉-峡谷山脉，Tushar火山，南部高原，Tonoquints火山。盆地和山脉:大盐湖，湖滨，瓦萨奇前谷，尤因塔延伸，托马斯山脉-廷蒂克山脉，塞维尔沙漠-黑岩沙漠，混乱盆地，海狸坝山脉，深溪山脉，大盐湖沙漠，鹅溪-筏河(一小部分在哥伦比亚和蛇河高原)，Curlew山谷，汉塞尔山脉-西山
{"title":"Subdivisions of the Major Physiographic Provinces in Utah","authors":"W. L. Stokes","doi":"10.34191/ug-4-1_1","DOIUrl":"https://doi.org/10.34191/ug-4-1_1","url":null,"abstract":"Utah includes large segments of three major physiographic provinces, the Colorado Plateau, Middle Rocky Mountains, and Basin and Range. Small parts of the Wyoming Basin and Columbia and Snake River Plateaus are also included. Because these provinces are all very large, it is advantageous to subdivide them into sections for description and reference. The following sections are proposed as subdivisions of the major physiographic provinces: Colorado Plateau: Uinta Basin, Book Cliffs-Roan Plateau, Mancos Shale Lowlands, Uncompahgre Extension, Salt Anticline, La Sal Mountains, Hatch Syncline, Great Sage Plain, Abajo (Blue) Mountains, Blanding Basin, Monument Upwarp, Slick-rock, Kaiparowits Plateau Escalante Benches, Grand Staircase, St. George Basin, Circle Cliffs-Teasdale Anticlines, Henry Mountains, San Rafael Swell, Green River Desert, Inner Canyonlands. Middle Rocky Mountains: Wasatch Range, Wasatch Hinterland, Clarkston Mountain, Cache Valley, Bear River Plateau-Bear Lake, Bear River, Crawford Mountains, Uinta Mountains. Wyoming Basin: Green River Basin. Basin and Range-Colorado Plateaus (Subprovince): Wasatch Plateau, Sanpete-Sevier Valleys, Gunnison Plateau-Valley Mountains, Pavant Range-Canyon Range, Tushar Volcanic, Southern High Plateaus, Tonoquints Volcanic. Basin and Range: Great Salt Lake, Lakeside, Wasatch Front Valleys, Uinta Extension, Thomas Mountains-Tintic Mountains, Sevier Desert-Black Rock Desert, Confusion Basin, Beaver Dam Range, Deep Creek Mountains, Great Salt Lake Desert, Goose Creek-Raft River (a small part is in the Columbia and Snake River Plateaus), Curlew Valley, Hansel Mountains-West Hills","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"44 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":"123767587","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}
Papers on the geology and mineral resources of Utah that have appeared during 1974 are listed here and, in addition, 1973 papers that did not appear in "Bibliography of Utah Geology 1973" (Utah Geology, v. 1, no. 1).
{"title":"Bibliography of Utah Geology 1973","authors":"","doi":"10.34191/c-60","DOIUrl":"https://doi.org/10.34191/c-60","url":null,"abstract":"Papers on the geology and mineral resources of Utah that have appeared during 1974 are listed here and, in addition, 1973 papers that did not appear in \"Bibliography of Utah Geology 1973\" (Utah Geology, v. 1, no. 1).","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"9 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":"115332968","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}
Study of thirteen cores and a hand specimen taken from the dimension stone of the Salt Lake City and County Building indicates that the weathering results mainly from mechanical rather than chemical processes. Penetration of water into the stone with alternate freezing and thawing is considered to be the most important process at work.
{"title":"Weathering of the Salt Lake City and County Building Dimension Stone","authors":"B. Kaliser","doi":"10.34191/ri-76","DOIUrl":"https://doi.org/10.34191/ri-76","url":null,"abstract":"Study of thirteen cores and a hand specimen taken from the dimension stone of the Salt Lake City and County Building indicates that the weathering results mainly from mechanical rather than chemical processes. Penetration of water into the stone with alternate freezing and thawing is considered to be the most important process at work.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"72 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":"126514142","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}
In the Roosevelt Hot Springs area on the western flank of the Mineral Range, Beaver County, Utah, Precambrian metamorphic rocks (principally biotite gneiss), Tertiary granite of the Mineral Range pluton, and late Pliocene or Pleistocene silicic volcanic rocks protrude through an extensive, westward sloping apron of alluvial fan deposits. North-trending faults are present in the foothills of the Mineral Range. Another conspicuous north-trending fault, the Dome fault, offsets Pleistocene(?) siliceous hot-spring deposits. Roosevelt Hot Springs, which no longer flow, were near the Dome fault. North and northeast-trending faults that produced small displacements in the alluvial fan surface were mapped in the central and western parts of the Roosevelt area. East-trending faults may also be present. Temperature gradients as high as 26.8°F per 100 feet have been reported. Steam was discharged from one well in 1968 and from another in 1975. The silica geothermometer and the sodium-potassium-calcium geothermometer were applied to published analyses of Roosevelt Hot Springs water; the silica geothermometer indicated reservoir temperatures of 210° and 195°C, and the Na-K-Ca geothermometer gave temperatures of 298° and 292°C.
{"title":"Geology of the Roosevelt Hot Springs Area, Beaver County, Utah","authors":"C. Petersen","doi":"10.34191/ug-2-2_109","DOIUrl":"https://doi.org/10.34191/ug-2-2_109","url":null,"abstract":"In the Roosevelt Hot Springs area on the western flank of the Mineral Range, Beaver County, Utah, Precambrian metamorphic rocks (principally biotite gneiss), Tertiary granite of the Mineral Range pluton, and late Pliocene or Pleistocene silicic volcanic rocks protrude through an extensive, westward sloping apron of alluvial fan deposits. North-trending faults are present in the foothills of the Mineral Range. Another conspicuous north-trending fault, the Dome fault, offsets Pleistocene(?) siliceous hot-spring deposits. Roosevelt Hot Springs, which no longer flow, were near the Dome fault. North and northeast-trending faults that produced small displacements in the alluvial fan surface were mapped in the central and western parts of the Roosevelt area. East-trending faults may also be present. Temperature gradients as high as 26.8°F per 100 feet have been reported. Steam was discharged from one well in 1968 and from another in 1975. The silica geothermometer and the sodium-potassium-calcium geothermometer were applied to published analyses of Roosevelt Hot Springs water; the silica geothermometer indicated reservoir temperatures of 210° and 195°C, and the Na-K-Ca geothermometer gave temperatures of 298° and 292°C.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"15 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":"125966534","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 major western Pleistocene volcanic ashes are reviewed with emphasis on their occurrence in Utah. The Pleistocene Bishop ash, Pearlette type 0 ash, Mazama ash, and several local ashes have been identified in Utah. The value of these extensive ash layers as stratigraphic markers depends on the ability to distinguish between them. Techniques employed to distinguish the ashes are discussed with emphasis on using the chemical composition of the volcanic glass shards. The major element chemistry of the glass portion of these ashes is presented together with that of other Cascade ashes and the Green Mountain Reservoir ash. It is noted that in the concentrations of major elements these ashes are all chemically similar to rhyolite, and only titanium, calcium, and iron are useful in separating the ash layers. The trace element con ten t (titanium, barium, manganese, iron, chlorine, rubidium, yttrium, zirconium, strontium, and niobium) of these ashes is more conclusive in identifying the ash layers. Some heretofore undescribed ashes from the east flank of the Oquirrh Mountains are not chemically similar to any other well characterized Pleistocene ash and are chemically distinct from Tertiary ashes occurring in the Salt Lake Group of the Bonneville Basin as well.
{"title":"Pleistocene Volcanic Ash Deposits in Utah","authors":"W. Nash, Rebecca Pope Smith","doi":"10.34191/ug-4-1_35","DOIUrl":"https://doi.org/10.34191/ug-4-1_35","url":null,"abstract":"The major western Pleistocene volcanic ashes are reviewed with emphasis on their occurrence in Utah. The Pleistocene Bishop ash, Pearlette type 0 ash, Mazama ash, and several local ashes have been identified in Utah. The value of these extensive ash layers as stratigraphic markers depends on the ability to distinguish between them. Techniques employed to distinguish the ashes are discussed with emphasis on using the chemical composition of the volcanic glass shards. The major element chemistry of the glass portion of these ashes is presented together with that of other Cascade ashes and the Green Mountain Reservoir ash. It is noted that in the concentrations of major elements these ashes are all chemically similar to rhyolite, and only titanium, calcium, and iron are useful in separating the ash layers. The trace element con ten t (titanium, barium, manganese, iron, chlorine, rubidium, yttrium, zirconium, strontium, and niobium) of these ashes is more conclusive in identifying the ash layers. Some heretofore undescribed ashes from the east flank of the Oquirrh Mountains are not chemically similar to any other well characterized Pleistocene ash and are chemically distinct from Tertiary ashes occurring in the Salt Lake Group of the Bonneville Basin as well.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"112 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":"132333395","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}
Unusual structures, most forming depressions but some domes, occur on the clay flats along the west and northeast shores of Great Salt Lake. They are submerged by the present high water levels (1975) but were exposed at the time of previous studies (1960-1961 and 1971 ). Trenches cutting the structures in cross section and cores taken within and around the structures reveal a variety of forms in layered and contorted clays and unconsolidated silts, sands, oolites, gypsum, and gypsum crystals. Information obtained by Stifel (1964) and by this study is not sufficient or definitive enough to explain the origin of these un usual and puzzling structures. Their origin is open to speculation. Techniques for obtaining peel samples of trench walls are described in detail.
{"title":"Depression Structures in Unconsolidated Sediments of Great Salt Lake, Utah","authors":"Alan C. Seelos, J. Oldroyd, D. R. Allen","doi":"10.34191/ug-2-2_91","DOIUrl":"https://doi.org/10.34191/ug-2-2_91","url":null,"abstract":"Unusual structures, most forming depressions but some domes, occur on the clay flats along the west and northeast shores of Great Salt Lake. They are submerged by the present high water levels (1975) but were exposed at the time of previous studies (1960-1961 and 1971 ). Trenches cutting the structures in cross section and cores taken within and around the structures reveal a variety of forms in layered and contorted clays and unconsolidated silts, sands, oolites, gypsum, and gypsum crystals. Information obtained by Stifel (1964) and by this study is not sufficient or definitive enough to explain the origin of these un usual and puzzling structures. Their origin is open to speculation. Techniques for obtaining peel samples of trench walls are described in detail.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"4 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":"128253522","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}
Silicified wood has been found in a thin coal bed of the Dakota Formation (lowest Upper Cretaceous) in the southwestern Kaiparowits Plateau in Kane County, Utah. It is not expected that metamorphic processes would partly coalify and partly silicify the plant remains. The occurrence is local. No significant coarse clastic material, other than the logs, is present in the coal bed. No satisfactory explanation for its presence can be deduced.
{"title":"Occurrence of Petrified Wood in Coal, Kane County, Utah","authors":"H. Doelling","doi":"10.34191/ug-4-1_29","DOIUrl":"https://doi.org/10.34191/ug-4-1_29","url":null,"abstract":"Silicified wood has been found in a thin coal bed of the Dakota Formation (lowest Upper Cretaceous) in the southwestern Kaiparowits Plateau in Kane County, Utah. It is not expected that metamorphic processes would partly coalify and partly silicify the plant remains. The occurrence is local. No significant coarse clastic material, other than the logs, is present in the coal bed. No satisfactory explanation for its presence can be deduced.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"6 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":"125376512","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}
Variscite (A1PO4 ·2H2 O) is found in Utah in three principal deposits: Clay Canyon, Lucin, and Amatrice Hill. Amatrice Hill, on the east flank of the Stansbury Mountains near Stockton, is the most recently found deposit and the only one mined at present. The mineral occurs as nodules in faulted and brecciated limestones of the Pennsylvanian-Permian Oquirrh Formation. Variscite resembles turquoise in color and is used similarly in jewelry. It is softer, however, and generally not as durable. Larger pieces are used for decorative stone. Three principal types based on pattern and color are recognized: jade, apple blossom, and cobweb. A blue color variant has been called variquoise.
{"title":"Amatrice Hill Variscite Deposit, Tooele County, Utah","authors":"H. Doelling","doi":"10.34191/ri-74","DOIUrl":"https://doi.org/10.34191/ri-74","url":null,"abstract":"Variscite (A1PO4 ·2H2 O) is found in Utah in three principal deposits: Clay Canyon, Lucin, and Amatrice Hill. Amatrice Hill, on the east flank of the Stansbury Mountains near Stockton, is the most recently found deposit and the only one mined at present. The mineral occurs as nodules in faulted and brecciated limestones of the Pennsylvanian-Permian Oquirrh Formation. Variscite resembles turquoise in color and is used similarly in jewelry. It is softer, however, and generally not as durable. Larger pieces are used for decorative stone. Three principal types based on pattern and color are recognized: jade, apple blossom, and cobweb. A blue color variant has been called variquoise.","PeriodicalId":398645,"journal":{"name":"Utah Geology","volume":"27 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":"121515631","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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