Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System

Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System: The Black Canyon of the Gunnison, Southwestern Colorado

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Standard

Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System : The Black Canyon of the Gunnison, Southwestern Colorado. / Jessup, Micah J.; Kalstrom, Karl E.; Connelly, James; Williams, Michael; Livaccari, Richard; Tyson, Amanda; Rogers, Steven A.

The Rocky Mountain Region: An Evolving Lithosphere: Tectonics, Geochemistry, and Geophysics. American Geophysical Union, 2013. p. 21-38.

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Harvard

Jessup, MJ, Kalstrom, KE, Connelly, J, Williams, M, Livaccari, R, Tyson, A & Rogers, SA 2013, Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System: The Black Canyon of the Gunnison, Southwestern Colorado. in The Rocky Mountain Region: An Evolving Lithosphere: Tectonics, Geochemistry, and Geophysics. American Geophysical Union, pp. 21-38. https://doi.org/10.1029/154GM03

APA

Jessup, M. J., Kalstrom, K. E., Connelly, J., Williams, M., Livaccari, R., Tyson, A., & Rogers, S. A. (2013). Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System: The Black Canyon of the Gunnison, Southwestern Colorado. In The Rocky Mountain Region: An Evolving Lithosphere: Tectonics, Geochemistry, and Geophysics (pp. 21-38). American Geophysical Union. https://doi.org/10.1029/154GM03

Vancouver

Jessup MJ, Kalstrom KE, Connelly J, Williams M, Livaccari R, Tyson A et al. Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System: The Black Canyon of the Gunnison, Southwestern Colorado. In The Rocky Mountain Region: An Evolving Lithosphere: Tectonics, Geochemistry, and Geophysics. American Geophysical Union. 2013. p. 21-38 https://doi.org/10.1029/154GM03

Author

Jessup, Micah J. ; Kalstrom, Karl E. ; Connelly, James ; Williams, Michael ; Livaccari, Richard ; Tyson, Amanda ; Rogers, Steven A. / Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System : The Black Canyon of the Gunnison, Southwestern Colorado. The Rocky Mountain Region: An Evolving Lithosphere: Tectonics, Geochemistry, and Geophysics. American Geophysical Union, 2013. pp. 21-38

Bibtex

@inbook{b53347789ed24308a3da39e60469afd8,

title = "Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System: The Black Canyon of the Gunnison, Southwestern Colorado",

abstract = "The dominant orogenic fabric in Proterozoic rocks of the southwestern U.S. includes a series of NE-striking shear zones that are commonly interpreted as suture zones across which blocks of juvenile crust were assembled to the southern margin of Laurentia. New structural and geochronological data from southwestern Colorado suggest that fabrics related to assembly of tectonostratigraphic terranes in this area strike northwest. The NW-striking foliations represent deformation at ca. 10-20 krn paleodepths (ca. 1.77-1.71 Ga), and are parallel to magnetic anomalies and to gradients in mantle velocity structure. The agreement between these data sets suggests that the NW-striking structures are important at lithospheric scale, extend to >I00 krn depth, and may record assembly of southwestern Colorado across NW-striking tectonic boundaries. Geochronologic data indicate that northwest (central Colorado)-and northeast (Cheyenne belt)-striking boundaries developed simultaneously during accretion of southwestern Laurentia between ca. 1.78-1.73 Ga. We propose that the Yavapai province at ca. 1.75 Ga may have involved a complex arcuate subduction system, with multiple arcs, analogous to that of the modern Banda Sea, in the Indonesia region.",

keywords = "Core-mantle boundary, Geology, Structural-Rocky Mountains, Geophysics-Rocky Mountains, Orogeny-Rocky Mountains",

author = "Jessup, {Micah J.} and Kalstrom, {Karl E.} and James Connelly and Michael Williams and Richard Livaccari and Amanda Tyson and Rogers, {Steven A.}",

year = "2013",

month = mar,

day = "19",

doi = "10.1029/154GM03",

language = "English",

isbn = "0875904181",

pages = "21--38",

booktitle = "The Rocky Mountain Region",

publisher = "American Geophysical Union",

address = "United States",

}

RIS

TY - CHAP

T1 - Complex Proterozoic Crustal Assembly of Southwestern North America in an Arcuate Subduction System

T2 - The Black Canyon of the Gunnison, Southwestern Colorado

AU - Jessup, Micah J.

AU - Kalstrom, Karl E.

AU - Connelly, James

AU - Williams, Michael

AU - Livaccari, Richard

AU - Tyson, Amanda

AU - Rogers, Steven A.

PY - 2013/3/19

Y1 - 2013/3/19

N2 - The dominant orogenic fabric in Proterozoic rocks of the southwestern U.S. includes a series of NE-striking shear zones that are commonly interpreted as suture zones across which blocks of juvenile crust were assembled to the southern margin of Laurentia. New structural and geochronological data from southwestern Colorado suggest that fabrics related to assembly of tectonostratigraphic terranes in this area strike northwest. The NW-striking foliations represent deformation at ca. 10-20 krn paleodepths (ca. 1.77-1.71 Ga), and are parallel to magnetic anomalies and to gradients in mantle velocity structure. The agreement between these data sets suggests that the NW-striking structures are important at lithospheric scale, extend to >I00 krn depth, and may record assembly of southwestern Colorado across NW-striking tectonic boundaries. Geochronologic data indicate that northwest (central Colorado)-and northeast (Cheyenne belt)-striking boundaries developed simultaneously during accretion of southwestern Laurentia between ca. 1.78-1.73 Ga. We propose that the Yavapai province at ca. 1.75 Ga may have involved a complex arcuate subduction system, with multiple arcs, analogous to that of the modern Banda Sea, in the Indonesia region.

AB - The dominant orogenic fabric in Proterozoic rocks of the southwestern U.S. includes a series of NE-striking shear zones that are commonly interpreted as suture zones across which blocks of juvenile crust were assembled to the southern margin of Laurentia. New structural and geochronological data from southwestern Colorado suggest that fabrics related to assembly of tectonostratigraphic terranes in this area strike northwest. The NW-striking foliations represent deformation at ca. 10-20 krn paleodepths (ca. 1.77-1.71 Ga), and are parallel to magnetic anomalies and to gradients in mantle velocity structure. The agreement between these data sets suggests that the NW-striking structures are important at lithospheric scale, extend to >I00 krn depth, and may record assembly of southwestern Colorado across NW-striking tectonic boundaries. Geochronologic data indicate that northwest (central Colorado)-and northeast (Cheyenne belt)-striking boundaries developed simultaneously during accretion of southwestern Laurentia between ca. 1.78-1.73 Ga. We propose that the Yavapai province at ca. 1.75 Ga may have involved a complex arcuate subduction system, with multiple arcs, analogous to that of the modern Banda Sea, in the Indonesia region.

KW - Core-mantle boundary

KW - Geology, Structural-Rocky Mountains

KW - Geophysics-Rocky Mountains

KW - Orogeny-Rocky Mountains

UR - http://www.scopus.com/inward/record.url?scp=84951021383&partnerID=8YFLogxK

U2 - 10.1029/154GM03

DO - 10.1029/154GM03

M3 - Book chapter

AN - SCOPUS:84951021383

SN - 0875904181

SN - 9780875904191

SP - 21

EP - 38

BT - The Rocky Mountain Region

PB - American Geophysical Union

ER -

ID: 334859989

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