Flow Structure and Form of the Deep Creek Stock, Southern Seven Devils Mountains, Idaho

White, Willis H.

doi:10.1130/0016-7606(1973)84<199:fsafot>2.0.co;2

Cited by 6 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The K-Ar dates are probably minimum ages of emplacement (Walker, 1986). The Deep Creek and nearby Echols Mountain plutons were intruded across the earlier deformation belt of the Oxbow-Cuprum shear zone Cannon and others, in Hamilton, 1963;Vallier, 1967Vallier, , 1995White, 1968White, , 1973. All three plutons intruded marble and volcaniclastic rocks that are herein considered to be the Triassic parts of the Wallowa terrane, mostly the Triassic Martin Bridge Formation (^m) and the Doyle Creek Formation (^sd; interpreted from descriptions in Cannon and others, in Hamilton, 1963;White, 1968White, , 1973G.C.…”

Section: Post-amalgamation Intrusive Rocksmentioning

confidence: 86%

“…In the southern Seven Devils Mountains, the Deep Creek pluton (Cannon and others, in White, 1968White, , 1973 north-central pl. 1) is dated by K-Ar on hornblende at about 137 Ma (Armstrong and others, 1977; recalculated by Walker, 1986).…”

Section: Post-amalgamation Intrusive Rocksmentioning

confidence: 99%

“…data, 1980;Aliberti, 1988). Foliation in the Deep Creek and Echols Mountain plutons was interpreted either to be tectonic or flow foliation (White, 1968(White, , 1973. Plutons of this age have been mapped in the Clearwater National Forest (Davidson, 1990; about 100 km north of pl.…”

Section: Post-amalgamation Intrusive Rocksmentioning

confidence: 99%

See 2 more Smart Citations

Geology of the Payette National Forest and vicinity, west-central Idaho

Lund¹

2021

Professional Paper

View full text Add to dashboard Cite

Before the Late Cretaceous, the eastern and western parts of the geologically complex Payette National Forest, as divided by the Salmon River suture, had fundamentally different geologic histories. The eastern part is underlain by Mesoproterozoic to Cambrian(?) rocks of the Laurentian (Precambrian North American) continent. Thick Mesoproterozoic units, which are at least in part equivalent in age to the Belt Supergroup of northern Idaho and western Montana, underwent Mesoproterozoic metamorphic and deformational events, including intrusion of Mesoproterozoic plutons. During the Neoproterozoic to early Paleozoic, the western edge of Laurentia was rifted. This event included magmatism and resulted in deposition of rift-related Neoproterozoic to Lower Cambrian(?) volcanic and sedimentary rocks above Mesoproterozoic rocks. The western part of the forest is underlain by upper Paleozoic to lower Mesozoic island-arc volcanic and sedimentary rocks. These rocks comprise four recognized island-arc terranes that were amalgamated and intruded by intermediate-composition plutons, probably in the Late Jurassic and Early Cretaceous, and then sutured to Laurentia along the Salmon River suture in the Late Cretaceous.The Salmon River suture formed as a right-lateral, transpressive fault. The metamorphic grade and structural complexity of the rocks increase toward the suture from both sides, and geochemical signatures in crosscutting plutonic rocks abruptly differ across the crustal boundary. Having been reactivated by younger structures, the Salmon River suture forms a north-trending topographic depression along Long Valley, through McCall, to the Goose Creek and French Creek drainages.During the last stages of metamorphism and deformation related to the suture event, voluminous plutons of the Idaho batholith were intruded east of the suture. An older plutonic series is intermediate in composition and preserved as elongated and deformed bodies near the suture and as parts of roof pendants to younger intrusions to the east. A younger magma series consists of undeformed, marginally peraluminous plutons that formed east of the suture after accretion.After suture-related compression, crustal extension resulted in voluminous volcanic and plutonic rocks of the Eocene Challis magmatic complex on the east side of the forest. Extension, from the Late Cretaceous to post-Miocene, uplifted the area of By Karen Lund the Idaho batholith relative to the western part of the forest and formed dominant highlands along the Snake River. Extensional basins also formed such that, in the Miocene, the Columbia River Basalt Group and related basaltic lavas flowed over most of the lower elevations on the western side of the forest and redirected erosional debris into north-trending, fault-controlled drainages and young sedimentary basins. Figure A1. Geographic extent of Payette (PNF) and Salmon (SNF) National Forests, west-central Idaho.

show abstract

Section: Post-amalgamation Intrusive Rocksmentioning

confidence: 86%

Section: Post-amalgamation Intrusive Rocksmentioning

confidence: 99%

See 1 more Smart Citation

Geology of the Payette National Forest and vicinity, west-central Idaho

Lund¹

2021

Professional Paper

View full text Add to dashboard Cite

show abstract

“…The structure is funnel shaped, generally dipping vertically or steeply inward, except in the eastern part of the batholith, where it is less steeply inclined. Primary foliation is thought to originate from shear flow within a magma chamber or outward expansion of magma during crystallization, two theories reviewed by White (1973). Marked schistosity in metamorphic rocks parallel to the contacts with the granodiorite and elongation of metamorphic septa parallel to the granodiorite foliation indicate deformation by forcible batholithic emplacement.…”

Section: Structure and Emplacement Of The Intrusive Rocksmentioning

confidence: 99%

The Uyaijah ring structure, Kingdom of Saudi Arabia

Dodge¹

1979

Professional Paper

View full text Add to dashboard Cite

The Precambrian Uyaijah ring structure is one of several batholithic masses in the eastern part of the Arabian Shield. A central core stock and a ring dike have been intruded into the circular batholith, their form being controlled by the .-early developed primary foliation of the batholith. Analyses for major-element oxides and trace-element data indicate that the central core stock resulted by continous differentiation of the batholithic magma with fractional crystallization and removal of hornblende. In contrast, the chemical data suggest that the ring dike crystallized from magma of ternary minimum composition from which great amounts of feldspar were removed. Although related extrusive volcanic rocks are not exposed in the general region, the ring structure is believed to be the plutonic analog of an epicontinental caldera.

show abstract

“…The range in specific gravities is from 2.71 to 2.94, the mean is 2.82, and the standard deviation from the mean is 0.08, indicating a rather large variability. The specific gravity values may be somewhat influenced by degree of vesicularity, nevertheless, These two theories of primary structure in plutonic bodies have recently been reviewed by White (1973). The steeply-dipping foliation in the area tends to slant slightly inward, toward the center of the ring, suggesting a funnel-shaped structure.…”

Section: Granodiorite Of Al Areyefmentioning

confidence: 99%

Geology and evaluation of tungsten anomalies, Buhairan-Abu Khurg area, southeastern part of the Uyaijah ring structure, Kingdom of Saudi Arabia

Dodge¹

1973

Open-File Report

View full text Add to dashboard Cite

Flow Structure and Form of the Deep Creek Stock, Southern Seven Devils Mountains, Idaho

Cited by 6 publications

References 0 publications

Geology of the Payette National Forest and vicinity, west-central Idaho

Geology of the Payette National Forest and vicinity, west-central Idaho

The Uyaijah ring structure, Kingdom of Saudi Arabia

Geology and evaluation of tungsten anomalies, Buhairan-Abu Khurg area, southeastern part of the Uyaijah ring structure, Kingdom of Saudi Arabia

Contact Info

Product

Resources

About