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Sandpile Group

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Journal Article
Published: 01 March 1965
Bulletin of Canadian Petroleum Geology (1965) 13 (1): 139–154.
..., approximately 4500 and 1200 feet thick respectively, contain nine graptolite zones of Early, Middle and Late Ordovician Age. The Sandpile Group overlies the Cloudmaker Formation disconformably and consists of over 1200 feet of siltstones, sandstones, and limestones. Basal beds carry an Early Silurian graptolite...
Journal Article
Published: 01 June 1968
Bulletin of Canadian Petroleum Geology (1968) 16 (2): 211–212.
... the Silurian and Ordovician successions. The Silurian Sandpile Group oversteps the Ordovician Cloudmaker Formation northwards, and it is also probable that onlapping relationships exist within the early Silurian succession, as the age of the base of the Sandpile Group likely decreases northwards. Faunal...
Journal Article
Published: 01 June 2000
Bulletin of Canadian Petroleum Geology (2000) 48 (2): 123–149.
... with the Geological Survey of Canada National Mapping Program (NATMAP) Central Forelands Project ( Legun, 1999 ). In the Cassiar Mountains, Norford (1962) described the Sandpile Group and its fauna. Gabrielse (1963 , 1979 , 1998 ) described the miogeoclinal succession of the Cassiar Platform during regional...
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Journal Article
Published: 28 September 2001
Canadian Journal of Earth Sciences (2001) 38 (10): 1387–1401.
... are undulatory and contain chert nodules. Grainstone becomes abundant near the top of the unit represented in part by phosphatic lags. The unit is disconformably overlain by massive-bedded, light grey dolostone, which Gabrielse ( 1963 ) initially called the Sandpile Group and now the Sandpile Formation...
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Journal Article
Published: 01 December 1966
Bulletin of Canadian Petroleum Geology (1966) 14 (4): 469–485.
... Ordovician and Lower Llandoverian strata are missing as a resul t of non-deposition and/or erosion so that basal beds of the Sandpile Group of Late Llandoverian age rest on the Caradocian graptolite-bearin g Cloudmaker Formation (Jackson, Steen, and Sykes, 1965, p . 144-145) . This unconformity extends...
Journal Article
Published: 01 December 1966
Bulletin of Canadian Petroleum Geology (1966) 14 (4): 504–519.
... D Outcrop area o f Silurian carbonates of Sandpile Group Outcrop area o f Silurian graptolitic rock s Outcrop area o f Nondo Formation Measured section o ~, !j i ~~lllll l FIG. 1.-Silurian Geology of Northeast British Columbia. AC and BC are lines of fence diagram of Figure 3 . Measured sections...
Image
A.  Section 4, the type section of the members of the Ospika Formation.  B....
Published: 01 June 2000
of the Sandpile Formation. D. Deadwood Lake Section within the Cassiar Terrane showing the uppermost part of the light-grey-weathering Kechika Formation overlain by dark shale and limestone of the Road River Group. E. Kechika-Road River contact, Deadwood Lake Section, is gradational and marked by a change
Journal Article
Journal: Geology
Published: 01 May 2002
Geology (2002) 30 (5): 482.
..., but the average displacement of a group of such particles, and thus the net sediment flux, would be exactly zero. Instead, the nonrandom component of particle motions, which reflects the forces acting on an ensemble of grains, generates net downslope transport. van Milligen and Bons incorrectly assume...
Journal Article
Published: 01 June 2012
Bulletin of the Seismological Society of America (2012) 102 (3): 1041–1058.
... for fault zones where the estimate of slip rate is available. When no estimate is available, the minimum and maximum average slip rates are adopted from the definition of degree of activity ( Research Group for Active Faults of Japan, 1991 ). For example, 1  mm/yr is assumed for the minimum average slip...
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Journal Article
Published: 01 December 1990
Bulletin of Canadian Petroleum Geology (1990) 38A (1): 45–54.
... and Sandpile groups in northeastern British Columbia. Bulletin of Canadian Petroleum Geology, v. 13p. 139-154. Jansa, L.F. 1970. Stratigraphy and sedimentology of the Ordovician and Lower Devonian strata in the Pine Pass map-area, British Columbia. In: Report of Activities, Part B, Geological Survey of Canada...
Journal Article
Published: 01 October 2004
Bulletin of the Seismological Society of America (2004) 94 (5): 1960–1967.
... performs well and has been used for the prediction of large-earthquake recurrence intervals in California ( Ellsworth et al. , 1999 ; Working Group on California Earthquake Probabilities, 2003 ). In this article, we study the properties of the recently introduced minimalist model (MM...
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Journal Article
Published: 01 September 2013
Russ. Geol. Geophys. (2013) 54 (9): 1071–1082.
... diabases, dacites, and liparites of the Nelinda Group; 2 , basalts, dacites, liparites, tuffs, sandstones, phyllites, limestones, and amphibolites of the Kelyana Group; 3 , sandstones, conglomerates, cuprous mudstones, and phyllites of the Shumnaya Formation; 4 , dolomites of the Yanguda Formation; 5...
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Journal Article
Published: 01 August 2003
Vadose Zone Journal (2003) 2 (3): 330–337.
.... In the first group of experiments a binary mixture of glass spheres of 50% large and 50% small by mass was poured into the 2-D cell using the delivery slope to form a pile with a single slope. This procedure was also followed in subsequent experiments using quartz sand binary mixtures; however, in that case...
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Journal Article
Published: 01 December 2001
Bulletin of Canadian Petroleum Geology (2001) 49 (4): 513–535.
..., but the Kechika–Road River contact is older, lying within the Tremadocian (not shown in Fig. 16 ). The Road River Group of the Cassiar Terrane extends into the Amorphognathus superbus Zone ( Pyle and Barnes, 2001 ) and is overlain unconformably by the Lower and Middle Silurian Sandpile and Upper Silurian...
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Journal Article
Published: 02 February 2007
Canadian Journal of Earth Sciences (2006) 43 (12): 1791–1820.
... of Earth Sciences , 41 ( 3 ): 331 – 348 . Jackson D.E. Steen G. Sykes D. 1965 . Stratigraphy and graptolite zonation of the Kechika and Sandpile Groups in northeastern British Columbia . Bulletin of Canadian Petroleum Geology , 13 ( 1 ): 139 – 154 . Larson M.L. Jackson...
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Journal Article
Published: 25 April 2007
Canadian Journal of Earth Sciences (2007) 44 (3): 297–316.
.... This study presents U–Pb geochronological results for two samples of southeastern YTT, one (00JN-17-6) from a grit unit in the upper part of the Swift River Group, and one (00JN-1-1) from the “Repeater Tower” conglomerate at the base of the unconformably overlying Klinkit Group (Fig.  4 ; Table  1...
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Journal Article
Journal: Geosphere
Published: 08 May 2019
Geosphere (2019) 15 (4): 1262–1290.
... intercepts of 487 ± 19 Ma and 167 ± 16 Ma (MSWD = 0.56; Fig. 6D ). A crystallization age of ca. 487 Ma is estimated for the Cloutier Creek stock based on the available data. The Askin group, along with the Sandpile Formation in the Cassiar Mountains, comprises part of the Silurian–Devonian Cassiar...
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Journal Article
Published: 01 March 1965
Bulletin of Canadian Petroleum Geology (1965) 13 (1): ii.
... of the Sandpile Group of Northern British Columbia," Geol. Surv. Canada, Bull. 78, pp. 1-51, Pls. 1-16. Photographs of braehiopods, crinoids, tabulate and septate corals. Good for favositid and halysitid corals. Technical. , 1962b, "I l lustrations of Canadian Fossils Cambrian, Ordovician and Silurian...
Journal Article
Published: 01 September 1975
Bulletin of Canadian Petroleum Geology (1975) 23 (3): 428–683.
... . Particularly good for archaeocyathids, olenelli d trilobites, Bighornia, Ca.tenipor a ., Halysites, orthid and pentamerid brachiopods . 1962b, The Silurian fauna of the Sandpile Group of northern British Columbia : Geol . Surv. Canada, Bull . 78, p . 1-51, pls . 146 . The corals and brachiopods shown here can...
Series: SEPM Special Publication
Published: 01 January 2016
DOI: 10.2110/sepmsp.106.02
EISBN: 9781565763432
..., with scale-dependent feedbacks, is at play in coral ecosystems, and/or type II, local disturbance-recovery processes are at work. Scale invariance in the form of power-law scaling has been reported for small reefal buildups of a few meters in diameter, up to entire atoll groups ( Purkis et al. 2007 , 2010...
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