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Figure 13. Photomicrographs of selected agglutinated foraminiferal species occurring in Cenomanian strata of the Rocky Mountain Foothills. (1) Saccammina alexanderi (Loeblich and Tappan), Bruin Creek, 19 m, ×200. (2) Placentammina lathrami (Tappan), Bruin Creek, 10 m, ×208. (3) Reophax incompta Loeblich and Tappan, Ghost River, sample 6, ×173. (4) Spiroplectammina ammovitrea Tappan, Bruin Creek, 7 m, ×160. (5–7) Textularia alcesensis Stelck and Wall; (5) Cadomin, 38.83 m, ×140; (6) Cadomin, 31.6 m, ×220; (7) Cadomin, Cripple Creek, 15 m, ×163. (8) Gaudryina canadensis Cushman, Highwood River, 9.4 m, ×150. (9) G. spiritensis Stelck and Wall, Highwood River, 7.8 m, ×230. (10–12) Verneuilinoides perplexus (Loeblich); (10) Cadomin, 31.6 m, ×190; (11) Ghost River, sample 9, ×160; (12) Bruin Creek, 10 m, ×250. (13) Haplophragmoides spiritense Stelck and Wall, Bruin Creek, 28 m, ×150. (14, 15) Trochammina rainwateri Cushman and Applin, Bruin Creek, 19 m; (14) spiral side, ×200; (15) umbilical side, ×230. (16, 17) Trochammina rutherfordi Stelck and Wall, Bruin Creek, 19 m; (16) spiral side, ×190; (17) umbilical side, ×215. (18) H. howardense Stelck and Wall, Cripple Creek, 18.45 m, ×107.

Figure 13. Photomicrographs of selected agglutinated foraminiferal species ... Available to Purchase

Published: 01 August 2000
Figure 13. Photomicrographs of selected agglutinated foraminiferal species occurring in Cenomanian strata of the Rocky Mountain Foothills. (1) Saccammina alexanderi (Loeblich and Tappan), Bruin Creek, 19 m, ×200. (2) Placentammina lathrami (Tappan), Bruin Creek, 10 m, ×208. (3) Reophax
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Figure 5. Measured section, microfaunal zonation, and paleoenvironmental interpretation of Albian to Turonian section at Bruin Creek. See Figure 4B for legend. FM.—Formation; MBR—Member.

Figure 5. Measured section, microfaunal zonation, and paleoenvironmental in... Available to Purchase

Published: 01 August 2000
Figure 5. Measured section, microfaunal zonation, and paleoenvironmental interpretation of Albian to Turonian section at Bruin Creek. See Figure 4B for legend. FM.—Formation; MBR—Member.
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Dip section 13–13′ located in southern Alberta (Fig. 3), showing interpreted correlation of allostratigraphic markers in the Lower Colorado allogroup and also in the Upper Colorado Group (between FSU and Red bentonite) from subsurface to outcrop on Bruin Creek and Oldman River.

Dip section 13–13′ located in southern Alberta (Fig. 3 ), showing interpret... Available to Purchase

Published: 01 December 2008
Fig. 23. Dip section 13–13′ located in southern Alberta (Fig. 3 ), showing interpreted correlation of allostratigraphic markers in the Lower Colorado allogroup and also in the Upper Colorado Group (between FSU and Red bentonite) from subsurface to outcrop on Bruin Creek and Oldman River.
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Figure 2. Stratigraphic column for foreland strata in southwestern Alberta. Modified from Stockmal et al. (2001) with local modifications of the Kootenay Group (Gibson, 1985), Blairmore Group (D. Leckie, 2001, personal commun.), and Milk River and Belly River groups (Stockmal, 1995). LCM and BCM are Lynx Creek and Bruin Creek members, respectively, of the Mill Creek Formation. Pulse 3 includes coarse clastic strata above the Belly River Group. The Alberta Group, which is dominated by shales and mudstones, is considered part of pulse 3. Crk.—Creek; Fm.—Formation; Mbr.—Member; Gp.—Group.

Figure 2. Stratigraphic column for foreland strata in southwestern Alberta.... Available to Purchase

Published: 01 May 2005
and BCM are Lynx Creek and Bruin Creek members, respectively, of the Mill Creek Formation. Pulse 3 includes coarse clastic strata above the Belly River Group. The Alberta Group, which is dominated by shales and mudstones, is considered part of pulse 3. Crk.—Creek; Fm.—Formation; Mbr.—Member; Gp.—Group.
Journal Article

Cretaceous igneous–clast conglomerate in the Blairmore Group, Rocky Mountain Foothills and adjacent subsurface (Bow Island Formation), Alberta, Canada Available to Purchase

Dale A. Leckie, Lee F. Krystinik
Published: 01 September 1995
Bulletin of Canadian Petroleum Geology (1995) 43 (3): 320–342.
DOI: https://doi.org/10.35767/gscpgbull.43.3.320
... et à étendue régionale de la partie supérieure des formations Beaver Mines et Mill Creek. Des masses individuelles de conglomérat ont jusqu’à 60 m d’épaisseur et peuvent être suivies latéralement sur une distance allant jusqu’à 3 km. La plus grande vallée remplie de conglomérat, le chenal Bruin...
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Distribution of the time equivalent Belle Fourche Formation in southern Alberta and western Montana. Thicknesses (in meters) of the Belle Fourche Formation in outcrops in southern Alberta Foothills are from Stott (1963) and Leckie et al. (2000): GR—Ghost River (sec. 4, tp. 27, rge. 7, W5); SR—Sheep River (tp. 19, rge. 5, W5); HR—Highwood River (sec. 28, tp. 18, rge. 3, W5); BC—Bruin Creek (50°00.919′, 114°24.926′); CR—Castle River (sec. 11, tp. 6, rge. 4, W5). Thicknesses of the Floweree Member of the Marias River Formation in outcrops in northwestern Montana are from Cobban et al. (1976): SC—Summit Creek (tp. 30N, rge. 13W); SRC—Sun River Canyon (tp. 22N, rge. 8W); VA—Vaughn (sec. 6, tp. 21N, rge. 1E); FL—Floweree (sec. 16, tp. 23N, rge. 6E). The well 1 Schwartz and the well 1 Johnnye in northern Montana are from Ridgley et al. (2001), and the Wolf Creek outcrop (tp. 15N, rge. 4W) in western central Montana is from Schmidt (1978). Middle and late Cenomanian crest-lines of uplift are from Merewether and Cobban (1986). Thicknesses of the Lower Frontier Formation in outcrops in southwestern Montana: Eastern Pioneer Mountains (sec. 28, tp. 4S, rge. 9W) is from Dyman and Tysdal (1998), Madison Range (sec. 7, tp. 9S, rge. 4E) from Tysdal (1991), Northern Snowcrest Range (sec. 18, tp. 9S, rge. 3W) from Dyman et al. (1988), and Lima Peaks (sec. 18, tp. 15S, rge. 8W) from Dyman et al. (1989).

Distribution of the time equivalent Belle Fourche Formation in southern Alb... Available to Purchase

Published: 01 March 2009
. 7, W5); SR—Sheep River (tp. 19, rge. 5, W5); HR—Highwood River (sec. 28, tp. 18, rge. 3, W5); BC—Bruin Creek (50°00.919′, 114°24.926′); CR—Castle River (sec. 11, tp. 6, rge. 4, W5). Thicknesses of the Floweree Member of the Marias River Formation in outcrops in northwestern Montana are from Cobban
Journal Article

The effect of paleotopography on the late Albian and Cenomanian sea-level record of the Canadian Cretaceous interior seaway Available to Purchase

Dale A. Leckie, Claudia J. Schröder-Adams, John Bloch
Journal: GSA Bulletin
Published: 01 August 2000
GSA Bulletin (2000) 112 (8): 1179–1198.
DOI: https://doi.org/10.1130/0016-7606(2000)112<1179:TEOPOT>2.0.CO;2
...Figure 13. Photomicrographs of selected agglutinated foraminiferal species occurring in Cenomanian strata of the Rocky Mountain Foothills. (1) Saccammina alexanderi (Loeblich and Tappan), Bruin Creek, 19 m, ×200. (2) Placentammina lathrami (Tappan), Bruin Creek, 10 m, ×208. (3) Reophax...
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Geologic map and cross sections of the study area (outlined in Fig. 2), showing stratigraphic units, major structures, and locations of stations where veins were measured. Inset (B) stereogram of the poles to bedding planes from the entire study area; Kamb contour intervals (C.I.) are used herein (Kamb, 1959). Map after Wilson et al. (2012), ongoing mapping by Alaska Division of Geological and Geophysical Surveys (written commun., 2016), and Detterman and Hartsock (1966). BBF—Bruin Bay fault; FCF—Fitz Creek fault.

Geologic map and cross sections of the study area (outlined in Fig. 2 ), s... Open Access

Published: 22 November 2017
.) are used herein ( Kamb, 1959 ). Map after Wilson et al. (2012) , ongoing mapping by Alaska Division of Geological and Geophysical Surveys (written commun., 2016), and Detterman and Hartsock (1966) . BBF—Bruin Bay fault; FCF—Fitz Creek fault.
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Figure 1. A: Map of Alaska showing major faults (bold lines). B: Location of Turnagain Arm in southeast Alaska. Rupture zone for 1964 earthquake is hachured in both figures. Bold rectangle in Figure 1B shows location of Figure 2. Faults from Plafker et al. (1993). NP—North American plate, PP—Pacific plate, WB—Wrangle block, am—Aleutian megathrust, bbf—Bruin Bay fault, cmf—Castle Mountain fault, df—Denali fault, kl—Kenai lineament, lcf—Lake Creek fault.

Figure 1. A: Map of Alaska showing major faults (bold lines). B: Location o... Available to Purchase

Published: 01 May 2007
—Pacific plate, WB—Wrangle block, am—Aleutian megathrust, bbf—Bruin Bay fault, cmf—Castle Mountain fault, df—Denali fault, kl—Kenai lineament, lcf—Lake Creek fault.
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(A) Simplified geologic map and cross sections of the study area (location in Fig. 1; modified after Detterman and Hartsock, 1966; Detterman and Reed, 1980; Wilson et al., 2012; Gillis et al., 2014; Herriott, 2016). Red roman numerals I–VII indicate the structural domains discussed in text. Locations of figures, field sites, and geographic references are shown. BBF—Bruin Bay fault; FCF—Fitz Creek fault. (B) Equal-area lower hemisphere stereographic projection showing poles to bedding in study area. Kamb (1959) contours are 2σ. C.I.—contour interval.

(A) Simplified geologic map and cross sections of the study area (location ... Open Access

Published: 26 October 2017
discussed in text. Locations of figures, field sites, and geographic references are shown. BBF—Bruin Bay fault; FCF—Fitz Creek fault. (B) Equal-area lower hemisphere stereographic projection showing poles to bedding in study area. Kamb (1959) contours are 2σ. C.I.—contour interval.
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Field photographs and fault kinematic results from domain VII. (A) Panoramic view (facing north) of the Bruin Bay fault zone (BBFZ) at Open Creek pass (Fig. 2). Field of view is ∼0.75 km; Jqd—Jurassic quartz diorite; Jtkl—lower Talkeetna Formation; Trk—Kamishak(?) Formation; T—toward; A—away. (B) Example of cataclasite from an outcrop in A; dashed line shows trace of a left-lateral fault surface. Hammer handle, 50 cm long, for scale. (C) Example of a minor fault surface, showing quartz slickenfibers and mineralized steps indicative of left-lateral slip. Solid line shows the trace of fault surface and short dashed line is parallel to the slip lineation. Pencil for scale. (D) Fault kinematic results for set A. (E) Fault kinematic results for set B.

Field photographs and fault kinematic results from domain VII. (A) Panorami... Open Access

Published: 26 October 2017
Figure 10. Field photographs and fault kinematic results from domain VII. (A) Panoramic view (facing north) of the Bruin Bay fault zone (BBFZ) at Open Creek pass ( Fig. 2 ). Field of view is ∼0.75 km; Jqd—Jurassic quartz diorite; Jtkl—lower Talkeetna Formation; Trk—Kamishak(?) Formation; T—toward
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Figure 4. Nd isotopic changes through the Blairmore Group (pulse 2) of late Aptian to Albian age (115–103 Ma). Nd isotopic values for underlying pulse 1 strata of the Ferni-Kootenay succession and the base of the Alberta Group (pulse 3) are shown for reference. Signals for ϵNd around zero are seen in Gladstone and Beaver Mines Formations. In the overlying Mill Creek Formation, ϵNd is lower, except for channels represented by conglomerate with igneous cobbles. It is uncertain whether the Bruin and Crowsnest channels are at the same stratigraphic level; their relative stratigraphic position in this figure is schematic. Note that Crowsnest Volcanics [sic] cannot be a source of the juvenile signature (field from Peterson et al., 1997). Arrows to the left of the stratigraphic column are generalized paleocurrents trends (from D. Leckie, 2001, personal commun.). Fm.—Formation; cgl.—conglomerate; Gp.—Group.

Figure 4. Nd isotopic changes through the Blairmore Group (pulse 2) of late... Available to Purchase

Published: 01 May 2005
are seen in Gladstone and Beaver Mines Formations. In the overlying Mill Creek Formation, ϵ Nd is lower, except for channels represented by conglomerate with igneous cobbles. It is uncertain whether the Bruin and Crowsnest channels are at the same stratigraphic level; their relative stratigraphic position
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Photograph of the Tilted Hills and fault kinematic results from domains IV and V. (A) View looking southwest along the Tilted Hills from a vantage point north of Chinitna Bay (location shown in Fig. 2; domain IV, background; domain V, foreground). White dashed lines show trace of bedding (S0), red-dashed lines show right-lateral cross-faults (Fig. 2). Field of view at Chinitna Bay is ∼8 km. T—toward; A—away. (B) Fault kinematic results from set A in domain IV. Small circles show α95confidence cones for the principal strain axes. FCF—Fitz Creek fault. (C) Fault kinematic results from set B in domain IV. LL—left lateral; RL—right lateral. (D) Fault kinematic results from set A in domain V. BBF—Bruin Bay fault. (E) Fault kinematic results from set B in domain V.

Photograph of the Tilted Hills and fault kinematic results from domains IV ... Open Access

Published: 26 October 2017
of bedding (S 0 ), red-dashed lines show right-lateral cross-faults ( Fig. 2 ). Field of view at Chinitna Bay is ∼8 km. T—toward; A—away. (B) Fault kinematic results from set A in domain IV. Small circles show α 95 confidence cones for the principal strain axes. FCF—Fitz Creek fault. (C) Fault kinematic
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Cenozoic faults. Map portrays: (1) the Kaltag and Nixon Fork, Denali, Castle Mountain, and Bruin Bay (strike-slip) faults that are the result of oblique subduction of the Pacific Plate beneath the margin of Southern Alaska; (2) the Aleutian-Alaska megathrust, and the Chugach-St. Elias Fault where the Pacific Plate is being obliquely to orthogonally subducted beneath the margin of Southern Alaska; (3) the dextral-slip Fairweather-Queen Charlotte Fault where the Pacific Plate is moving northwestward along the margin of the North American Plate; (4) the Frasier-Straight Creek Fault (inboard of the Fairweather-Queen Charlotte Fault) that also is the result of the Pacific Plate moving northwestward along the margin of the North American Plate; (5) the Cascadia megathrust where the Juan de Fuca Plate is being subducted beneath the margin of the Pacific Northwest; and (6) as the cause of subduction along the margin of the Northern Cordillera, the Juan de Fuca Ridge along which active sea-floor spreading is occurring. Adapted from Nokleberg and Stone (2017a).

Cenozoic faults. Map portrays: (1) the Kaltag and Nixon Fork, Denali, Castl... Open Access

Published: 11 December 2019
Figure 5. Cenozoic faults. Map portrays: (1) the Kaltag and Nixon Fork, Denali, Castle Mountain, and Bruin Bay (strike-slip) faults that are the result of oblique subduction of the Pacific Plate beneath the margin of Southern Alaska; (2) the Aleutian-Alaska megathrust, and the Chugach-St. Elias
Journal Article

Cenozoic sinistral transpression and polyphase slip within the Bruin Bay fault system, Iniskin-Tuxedni region, Cook Inlet, Alaska Open Access

Paul M. Betka, Robert J. Gillis, Jeff A. Benowitz
Journal: Geosphere
Published: 26 October 2017
Geosphere (2017) 13 (6): 1806–1833.
DOI: https://doi.org/10.1130/GES01464.1
... discussed in text. Locations of figures, field sites, and geographic references are shown. BBF—Bruin Bay fault; FCF—Fitz Creek fault. (B) Equal-area lower hemisphere stereographic projection showing poles to bedding in study area. Kamb (1959) contours are 2σ. C.I.—contour interval. ...
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Evolution of the Cordilleran orogen (southwestern Alberta, Canada) inferred from detrital mineral geochronology, geochemistry, and Nd isotopes in the foreland basin Available to Purchase

Gerald M. Ross, P. Jonathan Patchett, Mike Hamilton, Larry Heaman, Peter G. DeCelles, Erin Rosenberg, Melissa K. Giovanni
Journal: GSA Bulletin
Published: 01 May 2005
GSA Bulletin (2005) 117 (5-6): 747–763.
DOI: https://doi.org/10.1130/B25564.1
... and BCM are Lynx Creek and Bruin Creek members, respectively, of the Mill Creek Formation. Pulse 3 includes coarse clastic strata above the Belly River Group. The Alberta Group, which is dominated by shales and mudstones, is considered part of pulse 3. Crk.—Creek; Fm.—Formation; Mbr.—Member; Gp.—Group. ...
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View PDF for article title, Evolution of the Cordilleran orogen (southwestern Alberta, Canada) inferred from detrital mineral geochronology, geochemistry, and Nd isotopes in the foreland basin
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AAPG-CSD Geologic Provinces Code Map Available to Purchase

Richard F. Meyer, Laure G. Wallace, Fred J. Wagner, Jr.
Journal: AAPG Bulletin
Published: 01 October 1991
AAPG Bulletin (1991) 75 (10): 1644–1651.
DOI: https://doi.org/10.1306/0C9B29C5-1710-11D7-8645000102C1865D
... and De Bruin, 1982 ). These fields ( Table 4 ) would have to be individually reassigned from 507 to 535. Similarly, in the Los Angeles basin (760) a large number of fields in the northern part of Los Angeles County actually are in the eastern end of the Ventura basin (755). These fields ( Table 5 ) must...
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Journal Article

Vein formation during progressive Paleogene faulting and folding within the lower Cook Inlet basin, Alaska Open Access

J. Rosenthal, P. Betka, E. Nadin, R. Gillis, J. Benowitz
Journal: Geosphere
Published: 22 November 2017
Geosphere (2018) 14 (1): 23–49.
DOI: https://doi.org/10.1130/GES01435.1
....) are used herein ( Kamb, 1959 ). Map after Wilson et al. (2012) , ongoing mapping by Alaska Division of Geological and Geophysical Surveys (written commun., 2016), and Detterman and Hartsock (1966) . BBF—Bruin Bay fault; FCF—Fitz Creek fault. ...
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Journal Article

Developments in Arkansas and North Louisiana in 1950 Available to Purchase

Lester D. Collier
Journal: AAPG Bulletin
Published: 01 June 1951
AAPG Bulletin (1951) 35 (6): 1345–1351.
DOI: https://doi.org/10.1306/3D9342B9-16B1-11D7-8645000102C1865D
... in the Lake Bruin and Newellton distillate fields in Tensas Parish. Initial potentials on both discovery wells indicate good production, but neither field is expected to be very large. Lake Bruin is a stratigraphic-type structure with production from a stray sand above the Massive (basal) Tuscaloosa sand...
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The Vanadium-bearing Oxide Minerals of the Green Giant Vanadium-graphite Deposit, Southwest Madagascar Available to Purchase

Veronica E. Di Cecco, Kimberly T. Tait, Edward T.C. Spooner, Craig Scherba
Published: 30 May 2018
The Canadian Mineralogist (2018) 56 (3): 247–257.
DOI: https://doi.org/10.3749/canmin.1700068
... in the Androyen unit and consists of moderately to highly metamorphosed, sheared, graphitic quartzo-feldspathic schists and gneisses rich in biotite (annite), chlorite, and pyrope ( de Bruin 2017 ). At this time, the Molo project has measured mineral resources of 23 MT grading 6.32% C with further indicated...
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