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Sonoma volcanic field

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Journal Article
Journal: Geosphere
Published: 01 June 2011
Geosphere (2011) 7 (3): 629-657.
...Donald S. Sweetkind; James J. Rytuba; Victoria E. Langenheim; Robert J. Fleck Abstract Volcanic rocks in the Sonoma volcanic field in the northern California Coast Ranges contain heterogeneous assemblages of a variety of compositionally diverse volcanic rocks. We have used field mapping, new...
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Journal Article
Journal: Geosphere
Published: 01 June 2011
Geosphere (2011) 7 (3): 658-683.
..., are part of the Tolay Volcanics. Other new dates reported herein show that volcanic rocks in the Meacham Hill area and extending southwest to the Burdell Mountain fault are also part of the Tolay Volcanics. In the Sonoma volcanic field, strongly bimodal volcanic sequences are intercalated with sediments...
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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1993
DOI: 10.5382/GB.16
EISBN: 9781934969694
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40 AR&#x2F; 39 AR AGES OF TEPHRA LAYERS ERUPTED FROM THE <b>SONOMA</b> <b>VOLCANIC</b> <b>FIELD</b>, ...
in > Geosphere
Published: 01 June 2011
TABLE 8. 40 AR/ 39 AR AGES OF TEPHRA LAYERS ERUPTED FROM THE SONOMA VOLCANIC FIELD, CENTRAL COAST RANGES, CALIFORNIA, OBTAINED IN THIS STUDY, COMPARED TO K-AR AGES OBTAINED IN PREVIOUS STUDIES
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Simplified geologic map of the <b>Sonoma</b> <b>volcanic</b> <b>field</b> showing place names ci...
in > Geosphere
Published: 01 June 2011
Figure 2. Simplified geologic map of the Sonoma volcanic field showing place names cited in text. Volcanic geology modified from Saucedo et al. (2002) , Graymer et al. (2006a , 2007 ). Black lines are faults, sense of displacement not shown (modified from Bryant, 2005 ; Graymer et al., 2006b
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Simplified geologic map of the <b>Sonoma</b> <b>volcanic</b> <b>field</b> showing location of vo...
in > Geosphere
Published: 01 June 2011
Figure 3. Simplified geologic map of the Sonoma volcanic field showing location of volcanic centers. Volcanic geology and faults as shown on Figure 2 . Volcanic centers: AD—Annadel; AH—Arrowhead; BM—Bismarck Knob; CD—Calistoga Dome field; CS—Cup and Saucer; MG—Mount George; MSH—Mount St. Helena
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1993
DOI: 10.5382/GB.16
EISBN: 9781934969694
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1993
DOI: 10.5382/GB.16
EISBN: 9781934969694
... Abstract Epithermal precious-metal and mercury deposits are present in the Sonoma and Clear Lake volcanic fields of central California and several hot springs in the Clear Lake volcanic field are presently depositing mercury and gold. The deposits and hot springs are associated with late...
Journal Article
Published: 18 April 2017
Geological Magazine (2018) 155 (6): 1305-1329.
... Basin (Dickinson, 2006 , 2013 ; Blakey, 2008 ; Ingersoll, 2008 ) – which recorded sediments deposited during Early Triassic time. However, field evidence pointing towards the location and extension of the Golconda Allochthon is restricted to only a few remnants (e.g. ‘Koipato volcanics’) near...
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Folded <b>Sonoma</b> <b>Volcanics</b> in the southwestern part of the <b>volcanic</b> <b>field</b>. Bla...
in > Geosphere
Published: 01 June 2011
Figure 6. Folded Sonoma Volcanics in the southwestern part of the volcanic field. Black lines mark a volcanic breccia that has moderate opposing dips. Red lines show the axis of the plunging fold.
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DESCRIPTION OF <b>VOLCANIC</b> CENTERS WITHIN THE EASTERN PART OF THE <b>SONOMA</b> VOLCA...
in > Geosphere
Published: 01 June 2011
TABLE 2. DESCRIPTION OF VOLCANIC CENTERS WITHIN THE EASTERN PART OF THE SONOMA VOLCANIC FIELD
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DESCRIPTION OF <b>VOLCANIC</b> CENTERS WITHIN THE EASTERN PART OF THE <b>SONOMA</b> VOLCA...
in > Geosphere
Published: 01 June 2011
TABLE 2. DESCRIPTION OF VOLCANIC CENTERS WITHIN THE EASTERN PART OF THE SONOMA VOLCANIC FIELD
Image
DESCRIPTION OF <b>VOLCANIC</b> CENTERS WITHIN THE EASTERN PART OF THE <b>SONOMA</b> VOLCA...
in > Geosphere
Published: 01 June 2011
TABLE 2. DESCRIPTION OF VOLCANIC CENTERS WITHIN THE EASTERN PART OF THE SONOMA VOLCANIC FIELD
Image
DESCRIPTION OF <b>VOLCANIC</b> CENTERS WITHIN THE EASTERN PART OF THE <b>SONOMA</b> VOLCA...
in > Geosphere
Published: 01 June 2011
TABLE 2. DESCRIPTION OF VOLCANIC CENTERS WITHIN THE EASTERN PART OF THE SONOMA VOLCANIC FIELD
Image
DESCRIPTION OF <b>VOLCANIC</b> CENTERS WITHIN THE EASTERN PART OF THE <b>SONOMA</b> VOLCA...
in > Geosphere
Published: 01 June 2011
TABLE 2. DESCRIPTION OF VOLCANIC CENTERS WITHIN THE EASTERN PART OF THE SONOMA VOLCANIC FIELD
Journal Article
Journal: Geosphere
Published: 01 April 2012
Geosphere (2012) 8 (2): 386-402.
... terrace deposits at various elevations up to a maximum of ∼275 m, although he did not focus on these features and primarily mapped the high-elevation (150–250 m) marine terrace surfaces from aerial photographs with minimal field verification. Huffman (1972) also mapped lower marine deposits, but did...
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Journal Article
Journal: Geosphere
Published: 01 August 2015
Geosphere (2015) 11 (4): 1077-1110.
... mélanges and olistostromal sandstones is not. Large-scale mapping in Sonoma and Marin counties, California, shows that Franciscan rocks are deformed, submarine-fan units of Facies A–E, plus Facies F olistolith-bearing submarine channel sandstones and olistostromal sandstone- and shale-matrix mélanges. Some...
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... in and near the city of Santa Rosa and on the Rodgers Creek fault in Sonoma County; the second part (Day 2) will go to stops in the town of Willits, on the northern Maacama fault, in Mendocino County. The Rodgers Creek and Maacama faults are major strands of the San Andreas fault system in northern...
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Series: AAPG Memoir
Published: 01 January 1971
DOI: 10.1306/M15370C24
EISBN: 9781629812236
... of the subprovince. Tertiary and Upper Cretaceous miogeosynclinal sedimentary rocks are found in all three basins. Oil and gas shows and one minor oil and gas field are known in the Sonoma basin. Minor production has been discovered in the Livermore basin, but the Orinda basin has failed to yield production...
Journal Article
Journal: GSA Bulletin
Published: 01 May 1985
GSA Bulletin (1985) 96 (5): 647-654.
...KENNETH F. FOX, JR.; ROBERT J. FLECK; GARNISS H. CURTIS; CHARLES E. MEYER Abstract Erosional remnants of volcanic fields in west-central California form a linear northwest-trending belt growing younger in age to the northwest. Major fields within the belt are represented by the Neenach Volcanics...