1-20 OF 100 RESULTS FOR

Maiden Gneiss

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: GSA Memoirs
Published: 01 September 2010
DOI: 10.1130/2010.1206(28)
... The Goochland terrane in the central Piedmont Province of Virginia contains two documented units of Mesoproterozoic age, the State Farm Gneiss (ca. 1023–1046 Ma) and the Montpelier Anorthosite (ca. 1045 Ma). The heterogeneous Maidens gneiss, the most extensive unit in the terrane, has...
Series: GSA Special Papers
Published: 01 January 1984
DOI: 10.1130/SPE194-p215
... The Goochland terrane is defined here by the areal extent of a granulite-facies metamorphic sequence in the Piedmont of eastern Virginia. The sequence of units in this terrane includes the State Farm Gneiss of Grenville age, and the overlying Sabot amphibolite and Maidens gneiss. Also included...
Journal Article
Journal: GSA Bulletin
Published: 01 December 1985
GSA Bulletin (1985) 96 (12): 1580–1584.
.../Evington, 2.82 gm/cc; Maidens Gneiss, 2.78 gm/cc; and Grenville Basement, 2.71 gm/cc. Gravity anomalies are consistent with the existence of a major thrust fault, at depths between 9 km and 16 km, that probably separates Grenville Basement rocks from younger, Catoctin/Lynchburg rocks. These anomalies...
Journal Article
Journal: Geology
Published: 01 January 2005
Geology (2005) 33 (1): e70–e71.
... that “the absolute crystallization age of the protolith of the Sabot Amphibolite is unknown at present…[and] ...geochronologic evidence… for Devonian plutonism and metamorphism in the Maidens Gneiss (which is interlayered with amphibolite in many places) should raise serious doubts about a Mesoproterozoic age...
Journal Article
Journal: Geology
Published: 01 January 2005
Geology (2005) 33 (1): e70.
... evidence for Paleozoic (Devonian) protoliths for the metaigneous portions of the Maidens Gneiss, Goochland terrane, Virginia : Geological Society of America Abstracts with Programs , v. 36 , no. 2 , p . 80 . 0016-7592(2004)036[0080:PNMHMI]2.0.CO;2 Shirvell C.R. Tracy R.J. Owens B.E...
Image
Temperature-time-deformation (T-t-D) history for rocks of the Goochland ter...
Published: 20 April 2023
Amphibolite and the Mesoproterozoic(?) to Devonian Maidens Gneiss (mg). Also shown on the simplified terrane map is the location of lower greenschist-facies bedded metasiltstone of the Roanoke Rapids terrane (from Carter et al., 2022b ), adjacent across the Nottoway River fault zone from upper greenschist
Journal Article
Journal: GSA Bulletin
Published: 01 August 2003
GSA Bulletin (2003) 115 (8): 972–982.
... assemblages (primarily in the Maidens gneiss) because granulite conditions elsewhere in the southern Appalachians are assumed to have been confined to the Proterozoic; and (3) the presence of anorthosite, because many anorthosites worldwide are Mesoproterozoic. Aleinikoff et al. (1996) reported a U-Pb...
FIGURES | View All (6)
Journal Article
Journal: GSA Bulletin
Published: 01 May 1984
GSA Bulletin (1984) 95 (5): 522–539.
..., 424 ± 5 m.y. (Ill) Merrimack synclinorium: (a) late Proterozoic Z—granitic orthogneiss unit of the Massabesic Gneiss Complex, 600–620 m.y.; metavolcanic unit of the Massabesic Gneiss Complex, 646 m.y. or older, (b) Devonian to Ordovician—Fitchburg Complex at Maiden Hill, 402 ± 11 m.y.; Fitchburg...
Journal Article
Journal: Geology
Published: 01 August 2004
Geology (2004) 32 (8): 669–672.
... Maidens Gneiss Goochland terrane, which overlies the Sabot Amphibolite, underwent Devonian metamorphism and plutonism not found to the west. New ages and geochemical data for Neoproterozoic rift-related felsic rocks in the Goochland terrane, Blue Ridge, Reading Prong, and Manhattan Prong suggest...
FIGURES
Series: GSA Field Guide
Published: 01 January 2012
DOI: 10.1130/2012.0029(10)
EISBN: 9780813756295
... (44.4) Turn right (E) onto St. Rte. 632/Fairground Rd. 0.9 (45.3) Turn left (N) onto St. Rte. 665 into Hidden Rock Park. 0.4 (45.7) Park in lot by playground and baseball fields. Stop 1-4. Strongly Deformed Maidens Gneiss Intruded by Pegmatite at Hidden Rock Park...
FIGURES | View All (9)
Journal Article
Journal: Geosphere
Published: 20 April 2023
Geosphere (2023) 19 (3): 900–932.
... Amphibolite and the Mesoproterozoic(?) to Devonian Maidens Gneiss (mg). Also shown on the simplified terrane map is the location of lower greenschist-facies bedded metasiltstone of the Roanoke Rapids terrane (from Carter et al., 2022b ), adjacent across the Nottoway River fault zone from upper greenschist...
FIGURES | View All (17)
Journal Article
Journal: Geology
Published: 01 August 2007
Geology (2007) 35 (8): 715–718.
... thickening and lateral ductile flow ( Cagnard et al., 2006 ; Rey and Houseman, 2006 ; Cruden et al., 2006 ). The latter mode of deformation was particularly well represented in Archean times ( Choukroune et al., 1995 ; Davis and Maidens, 2003 ) when the continental geotherm and density profile conspired...
FIGURES | View All (4)
Journal Article
Published: 01 March 2012
South African Journal of Geology (2012) 115 (1): 65–76.
...J. JAGUIN; D. GAPAIS; M. POUJOL; P. BOULVAIS; J.-F. MOYEN Abstract This paper discusses the deformation pattern of the Murchison Greenstone Belt, which is located in the northeastern Kaapvaal Craton, South Africa. The belt strikes northeast to southwest, is surrounded by gneisses and granitoids...
FIGURES | View All (7)
Journal Article
Journal: AAPG Bulletin
Published: 01 November 1967
AAPG Bulletin (1967) 51 (11): 2305–2309.
... intervenes between the unconformity and normal white Kinnikinic Quartzite along the Middle Fork of Skull Canyon (location 7). Location 7 ( Fig. 1 ), Middle Fork of Skull Canyon, SW 1 4 , Sec. 15, T. 10 N., R. 30 E., Clark County, Idaho. In the Maiden Peak area, farther north...
FIGURES
Journal Article
Published: 01 November 2016
The Canadian Mineralogist (2016) 54 (6): 1563–1593.
... ). The Maidens Gneiss ( Farrar 1984 ), which comprises a heterogeneous group of schists and gneisses derived from both igneous and sedimentary protoliths, is the predominant map unit in the region. It surrounds the MPL anorthosite on all sides, but the age relationship between the anorthosite and its gneissic...
FIGURES | View All (19)
Journal Article
Published: 01 March 2001
South African Journal of Geology (2001) 104 (1): 1–12.
...-facing and lower limb of the Hoanib Fold Nappe at Okambondevlakte Poort showing the pre-Damara basement gneisses structurally overlying a sequence of Chuos cliamictites (a), Chuos iron formation (b) and Karibib marbles (c) © 2001 Geological Society of South Africa 2001 The Kaoko Belt...
FIGURES | View All (7)
Journal Article
Published: 01 May 2020
Jour. Geol. Soc. India (2020) 95 (5): 543–544.
... of the Brahmaputra river basin, a maiden multidisciplinary study ever undertaken in India which provided the foundation of development planning of North Eastern Council. This gigantic work was published in a Special Publication of GSI. Nearly two decades later, while in Eastern Regional Office as Deputy Director...
FIGURES
Journal Article
Published: 01 September 2006
South African Journal of Geology (2006) 109 (3): 265–278.
...Cristiano Lana; Roger L. Gibson; Wolf Uwe Reimold Abstract The Broodkop shear zone is an approximately 1 km-wide, vertical, northeasterly-trending, mylonitic shear zone that separates upper amphibolite- to granulite-facies gneisses (≥670°C, 4.5 to 5.5 kbar) from mid-greenschist-facies (~400°C...
FIGURES | View All (8)
Journal Article
Published: 01 April 2024
Jour. Geol. Soc. India (2024) 100 (4): 463–466.
..., guidelines for water resource development and management in hard rock terrain. His was also a maiden attempt to establish hydrostratigraphy of hard rocks in Mysore state for common man’s knowledge (as partly reproduced in Table 3 ). Village-wise microlevel surveys will create a valuable database. Scientific...
FIGURES | View All (5)
Journal Article
Published: 30 June 2005
Canadian Journal of Earth Sciences (2005) 42 (4): 457–478.
... sites formed the COPROD2 study organized by Jones ( 1993 ), whereby different 2-D inverse codes were used by many authors on the same MT data. MT measurements (not shown) were made just north of the PanCanadian profile by Maidens and Paulson ( 1988 ; see a discussion of their work in Jones 1988 b...
FIGURES | View All (12)