1-20 OF 486 RESULTS FOR

Alkali Anticline

Results shown limited to content with bounding coordinates.
Sort by
Image
Measured stratigraphic section of Frontier Formation at <b>Alkali</b> <b>Anticline</b> wi...
Published: 01 January 2013
Figure 12. Measured stratigraphic section of Frontier Formation at Alkali Anticline with position of detrital zircon samples and dated porphyry clasts from Torchlight Member. c – clay, s – silt, fs – fine sand, ms – medium sand, cs – coarse sand, g – gravel, SB – sequence boundary.
Series: GSA Memoirs
Published: 01 January 1974
DOI: 10.1130/MEM138-p1
... was crowded into a steeply plunging, coupled anticline and syncline, and small bodies of hornblende-magnetite clinopyroxenite along the margins appear to have slumped there during the folding. Intense penetrative deformation is found in both pyroxenite units and in adjoining amphibolitized gabbro...
Image
Detrital zircon age probability distributions for 70–170 Ma grains from thr...
Published: 01 January 2013
Figure 13. Detrital zircon age probability distributions for 70–170 Ma grains from three Frontier Formation sandstone units at Alkali Anticline.
Image
Detrital zircon age-probability distributions for three composite samples o...
Published: 01 September 2013
Figure 13. Detrital zircon age-probability distributions for three composite samples of the Cenomanian–Coniacian Frontier Formation collected at three different localities (N Lazy S Ranch, Shoshone River, and Alkali anticline). All three distributions are dominated by depo age zircons
Image
Illustrations of Facies 4 and 4A (Medial–Proximal Delta Front, and Medial–P...
Published: 01 January 2014
, and restricted to certain discrete beds and horizons. Hammer 0.25 m for scale. E) Facies 4 sandstones at Alkali Anticline, showing well-developed aggradational wave ripples (below scale card). F) Gyrochorte traces (Gy) on a sandstone bed top in Facies 4, NW of Greybull. G) Small Diplocraterion burrows
Journal Article
Published: 01 January 2013
Rocky Mountain Geology (2013) 48 (1): 41-61.
...Figure 12. Measured stratigraphic section of Frontier Formation at Alkali Anticline with position of detrital zircon samples and dated porphyry clasts from Torchlight Member. c – clay, s – silt, fs – fine sand, ms – medium sand, cs – coarse sand, g – gravel, SB – sequence boundary. ...
FIGURES | View All (15)
Journal Article
Journal: AAPG Bulletin
Published: 01 April 2001
AAPG Bulletin (2001) 85 (4): 715-736.
... pierced through the Middle and Late Jurassic strata and was covered by Miocene strata. Figure 12 Classification diagram of acidic intrusive rock. 1a = silexite; 1b = quartz granite; 2 = alkali-feldspar granite; 3 = granite (a = moyite, b = adamellite); 4 = granodiorite; 5 = tonalite. Figure 13 QAP...
FIGURES | View All (20)
Journal Article
Published: 18 January 2018
Canadian Journal of Earth Sciences (2018) 55 (4): 356-372.
... partial melting of a subduction-enriched lithospheric mantle source, late Mississippian volcanism was dominated by alkali mafic lavas produced by the low-degree partial melting of a sublithospheric mantle source that shows no evidence of subduction imprint. Two distinct upper Mississippian volcanic...
FIGURES | View All (14)
Journal Article
Journal: AAPG Bulletin
Published: 01 May 2014
AAPG Bulletin (2014) 98 (5): 893-909.
... Science Reviews , v.  92 , p.  1–33 . Clark C. K. , 2010 , Stratigraphy, sedimentology, and ichnology of the Upper Cretaceous Frontier Formation in the Alkali anticline region , Bighorn County, Wyoming: M.S. thesis, University of Nebraska–Lincoln , 75 p. Cobban W...
FIGURES | View All (8)
Journal Article
Published: 01 September 2005
Journal of Sedimentary Research (2005) 75 (5): 921-942.
... alkali feldspars from the Fulmar Formation, most probably originating in granulite-facies rocks. Ab-rich phase darker gray, Or-rich phase lighter gray. A) Coarse mesoperthite, with Ab > Or. Note slightly sinuous lamellae, and wedge shaped ends to lamellae of both phases. B) Complex, irregular...
FIGURES | View All (21)
Journal Article
Published: 01 January 2004
Exploration and Mining Geology (2004) 13 (1-4): 15-23.
... into a 5 km-long anticline. There is a close spatial association of Au-As zones to the trace of this F2 ULU anticline. The largest of these auriferous zones, the Flood zone, is localized at the core of the fold. The southeast-trending Flood zone consists of several anastomosing lenses that have been traced...
FIGURES | View All (5)
Journal Article
Published: 01 June 2014
The Canadian Mineralogist (2014) 52 (3): 513-531.
... image of the Sierra Silva anticline. (c) Overview of the study area showing outcrops of the Cretaceous units. (d) The stratigraphic column analyzed and samples collected from the Castillo Formation. Fig. 2 (a) Sandstone classification diagram ( Folk et al. 1970 ) for dawsonite-bearing rocks. (b...
FIGURES | View All (10)
Journal Article
Journal: Economic Geology
Published: 01 May 2008
Economic Geology (2008) 103 (3): 555-582.
.... The triangular-shaped Lufilian foreland is located to the northeast of the Copperbelt. Recently sediment-hosted stratiform copper occurrences have been explored in the foreland, including the Kinkumbi prospect in the Lufukwe anticline. Although the stratiform copper mineralization in the Copperbelt is mainly...
FIGURES | View All (18)
Journal Article
Published: 27 September 2005
Canadian Journal of Earth Sciences (2005) 42 (6): 1033-1044.
..., the Slab volcanics. These grey breccias are interpreted as a vent facies of Wernecke Breccia, and their emplacement into the stratigraphically lowest unit of the Wernecke Supergroup infers that at least 9 km of exhumation occurred in the core of a major Racklan anticline prior to brecciation. The Slab...
FIGURES | View All (11)
Journal Article
Published: 01 April 2006
Environmental and Engineering Geoscience (2006) 12 (4): 315-329.
... of the Küçükköy sandstones quarries: (A) weathering conditions, (B) anticline structure, (C) vertical and lateral transitions, (D) diabase and andesite intrusions, (E) fault contact. © 2006 Association of Engineering Geologists 2006 Quarry Crushed Rock Geological Effects Construction Aggregates...
FIGURES | View All (8)
Journal Article
Journal: AAPG Bulletin
Published: 01 September 2000
AAPG Bulletin (2000) 84 (9): 1340-1364.
... Atlas. Mesozoic source rocks in the Middle Atlas may have been sufficiently buried beneath Neogene basin sediments to reach maturity, and the late Cenozoic timing of contraction can produce suitable structural traps. Figure 10 Seismic reflection profile 84GR09 across the Bled Marhrane anticline (BNA...
FIGURES | View All (16)
Journal Article
Journal: Economic Geology
Published: 01 January 2003
Economic Geology (2003) 98 (1): 125-145.
... rocks and alkali-rich intrusions in the area and controlled by north-south–north-northwest, large-scale, strike-slip faults, which are perpendicular to the collision zone between the Indian and Asian continents. Isotopic age determinations of the ore-bearing porphyries indicate that the magmatism...
FIGURES | View All (11)
Journal Article
Published: 01 May 2011
Scottish Journal of Geology (2011) 47 (1): 21-32.
... igneous bodies that resemble sills but lack features such as chilled margins. Some display fine bedding and lamination near the base and top. These rocks are interpreted as tuffs with chemical affinities to alkali basalts such as those of the CPF on the neighbouring island of Little Cumbrae and in south...
FIGURES | View All (11)
Journal Article
Journal: Interpretation
Published: 29 January 2018
Interpretation (2018) 6 (1): SB111-SB122.
... going on since the latest Miocene toward basement highs, where anticlines and flower structures offered adequate trapping conditions for hydrocarbons. We argue that compaction of thick sedimentary piles, in addition to neotectonic structures, has also been important in trap formation within...
FIGURES | View All (8)
Journal Article
Published: 01 August 2010
Bulletin of the Seismological Society of America (2010) 100 (4): 1678-1694.
... a hanging-wall anticline beneath the trench. Although the primary fault was not observed, the revealed subsidiary features enabled us to discuss surface rupture morphology and its repetition patterns. We suggest that: (1) the east-dipping reverse faults exposed on the trench walls and the hanging-wall...
FIGURES | View All (11)