Kinematic Constraints on Rodinia Reconstructions from the Core of the Texas Grenville Orogen

Reese, Joseph F.; Mosher, Sharon

doi:10.1086/381657

Cited by 13 publications

(16 citation statements)

References 30 publications

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“…• Reese and Mosher (2004) and Dalziel et al (2000) interpreted the deformational and metamorphic history, kinematic orientation and shape of the Llano belt have been to be the result of a collision with a southern continent and suggested that the Kalahari Craton was the indentor against the southern margin of the llano belt.…”

Section: Discussionmentioning

confidence: 99%

U–Pb Zircon (SHRIMP) ages of granite sheets and timing of deformational events in the Natal Metamorphic Belt, southeastern Africa: Evidence for deformation partitioning and implications for Rodinia reconstructions

Mendonidis

Armstrong

2016

Precambrian Research

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Section: Discussionmentioning

confidence: 99%

U–Pb Zircon (SHRIMP) ages of granite sheets and timing of deformational events in the Natal Metamorphic Belt, southeastern Africa: Evidence for deformation partitioning and implications for Rodinia reconstructions

Mendonidis

Armstrong

2016

Precambrian Research

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“…The deformational and metamorphic history of the Packsaddle domain in the southeastern uplift is well documented (Carter, 1989;Nelis et al, 1989;Reese, 1995;Mosher, 1993Mosher, , 1998Reese and Mosher, 2004) (Fig. 1).…”

Section: Structure and Metamorphismmentioning

confidence: 93%

“…Multiple phases of deformation producing five generations of folds with associated penetrative to moderately well-developed metamorphic fabrics are documented in many parts of the uplift, along with ductile shear zones in the southeastern uplift (Denny and Gobel, 1986;Carter, 1989;Gillis, 1989;Nelis et al, 1989;Mosher, 1993Mosher, , 1998Reese, 1995;Roback, 1996a;Roback et al, 1999;Hoh, 2000;Hunt, 2000;Reese and Mosher, 2004). Pressures and temperatures for the earliest metamorphism range from 15 to 21 kilobars and 750 °C in the western uplift (Carlson, 1998;Anderson, 2001) to 6 to 8 kilobars and ∼585 °C in the northwestern uplift (Carlson and Reese, 1994;Carlson and Schwarze, 1997).…”

Section: Deformation Metamorphism and Late Plutonismmentioning

confidence: 99%

“…al., 1989;Mosher, 1993Mosher, , 1998Reese, 1995;Reese and Mosher, 2004). D 2 structures are the most penetrative and pervasive; S 2 forms the dominant foliation and is axial planar to abundant F 2 isoclinal folds.…”

Section: Packsaddle Domain Of the Southeastern Upliftmentioning

confidence: 99%

“…Collision of a single eastern continental block, as implied by Bickford et al (2000) and Karlstrom et al (2001), would require bulk transcurrent motion and associated deformation along the entire southern margin. In the Llano uplift, evidence from the southeastern uplift (Carter, 1989;Nelis et al, 1989;Reese, 1995;Reese and Mosher, 2004) was used to support collision of a continental block from the south or southwest. The possibility remains, however, that deformation in this area could be solely related to accretion of the arc terrane, and the rest of the uplift could record transcurrent-related deformation.…”

Section: Introductionmentioning

confidence: 99%

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Tectonic evolution of the eastern Llano uplift, central Texas: A record of Grenville orogenesis along the southern Laurentian margin

Mosher¹,

Hoh²,

Zumbro³

et al. 2004

Memoir 197: Proterozoic Tectonic Evolution of the Grenville Orogen in North America

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Mesoproterozoic metamorphic rocks exposed in the eastern Llano uplift, central Texas, were involved in a ca. 1150-1116 Ma Grenville-age orogenic event along the southern margin of Laurentia. Collision of the exotic Coal Creek arc and a southerly continental block with Laurentia tectonically telescoped and stacked three distinct lithotectonic domains. A major ductile shear zone forms the contact between the Coal Creek ensimatic arc terrane, the southwesternmost domain, and rocks with Laurentian affinities to the north. Directly north of the arc boundary, supracrustal rocks of the Packsaddle domain represent basinal sedimentary and volcanic rocks deposited along the southern Laurentian margin. Farther north, granitic gneisses of the Valley Spring domain, which consist of both plutonic and supracrustal rocks, represent a Laurentian continental-margin arc emplaced beneath the Packsaddle domain along a shear zone. Recent mapping in the northeastern uplift shows that the Valley Spring domain records a polyphase deformational history equivalent to that observed in the Packsaddle domain of the southeastern uplift. Early deformation occurred under uppermost amphibolite-facies metamorphic conditions and was accompanied by partial melting and formation of foliation-parallel leucosomes, consistent with deformation deeper in the orogenic pile. Mylonitic rocks in the shear zone separating these two domains show thrusting to the northeast, similar to that shown by the shear zone separating the Coal Creek arc from the Packsaddle domain. The Valley Spring domain igneous complex adjacent to the shear zone is highly attenuated into thin sheets in this zone. The Grenville event in the eastern uplift is characterized by polyphase ductile deformation synchronous with upper amphibolite-facies dynamothermal metamorphism. Deformation progressed from northeast-directed ductile thrusting and folding 783 *

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Grenville-age A-type and related magmatism in southern Laurentia, Texas and New Mexico, U.S.A.

Li¹,

Barnes²,

Barnes³

et al. 2007

Lithos

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Kinematic Constraints on Rodinia Reconstructions from the Core of the Texas Grenville Orogen

Cited by 13 publications

References 30 publications

U–Pb Zircon (SHRIMP) ages of granite sheets and timing of deformational events in the Natal Metamorphic Belt, southeastern Africa: Evidence for deformation partitioning and implications for Rodinia reconstructions

U–Pb Zircon (SHRIMP) ages of granite sheets and timing of deformational events in the Natal Metamorphic Belt, southeastern Africa: Evidence for deformation partitioning and implications for Rodinia reconstructions

Tectonic evolution of the eastern Llano uplift, central Texas: A record of Grenville orogenesis along the southern Laurentian margin

Grenville-age A-type and related magmatism in southern Laurentia, Texas and New Mexico, U.S.A.

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