...ve Coal Measures to distinguish them from the overlying Upper Coal (Barren Red) Measures. The limits of the two divisions have been given above and the ma
...tbridge areas the upper part of the Middle Coal Measures consists of thick red sandstone rather than the usual grey mudstone, pale sandstone and coals.
17 KB (2,652 words) - 13:00, 1 February 2018
...Barren Red Measures because the processes of oxidation which produced the red coloration also caused the alteration or destruction of most of the coal se
...cilitated in some instances by fault planes and more permeable layers. The red coloration is due to the alteration of various iron minerals to hematite.
12 KB (1,814 words) - 12:59, 1 February 2018
...deposition of the gravels but before deposition of the overlying cover of red till (Galloway 1961).
...1]) and Wilderness (Locality D, [NS 600 722]) showed that about 3–7 m of red till (rather stonier here than 1 km to the west, where it also is thicker)
46 KB (7,357 words) - 00:32, 12 February 2019
...ne 1980a). The andesite pebbles imply not too distant erosion of Lower Old Red Sandstone lavas at the time of deposition.
...e predominantly thick white sandstones with interbedded grey and sometimes red mudstones. Marine horizons are unknown but both algal and ostracod-bearing
38 KB (5,954 words) - 18:01, 23 February 2019
...ells 44/28-1 and 44/28-2 on the basis of variations in CZi. BRG – Barren Red Group. CMG – Coal Measures Group.]]
...e Duckmantian) and Cleaver (late Duckmantian to mid-Bolsovian). The Barren Red Measures Group includes two formations, the Ketch (mid-Bolsovian to ?Westph
59 KB (7,021 words) - 10:25, 14 August 2019
...e & Moscariello 1999). (a) Original correlation datum = base of the Barren Red Measures (= Schooner Formation), showing zones A, B and C. (b) Chemostratig
...ones that make up the Upper Carboniferous Schooner Formation (or “Barren Red Measures”) from the Silver Pit Basin, southern North Sea. These deposits
72 KB (11,039 words) - 15:07, 14 August 2019
...redbed sequences of the Upper Carboniferous Schooner Formation (“Barren Red Measures”) from the southern North Sea are a significant gas reservoir, b
...mantian to early Bolsovian grey sandy coal measures, followed by Bolsovian red silty mudstones and sandstones (Leeder & Hardman 1990, Besly et al. 1993, C
90 KB (13,199 words) - 19:31, 14 August 2019
...of faulting. Late Carboniferous faults are shown in green. Younger faults (red) were active in the Mesozoic.]]
...il|Figure 6 Thickness variations in the Lower Ketch from seismic data. The red arrows show areas thickening into growth faults. The maximum thickness (dar
33 KB (4,946 words) - 21:55, 14 August 2019
...ver, there is also a strong case for assigning all of the late Westphalian red-beds into a single formation, and designating member status for lower sand-
Besly, B. M., S. D. Burley, P. Turner 1993. The late Carboniferous “Barren Red” play of the Silver Pit area, southern North Sea. In ''Petroleum geology
62 KB (9,298 words) - 09:10, 15 August 2019
Besly, B. M., S. D. Burley, P. Turner 1993. The late Carboniferous “Barren Red Bed” play of the Silver Pit area, southern North Sea. In ''Petroleum geol
...1999. Integrated modelling of the Southern North Sea Carboniferous Barren Red Measures using production data, geochemistry, and pedofacies cyclicity. Pap
52 KB (6,796 words) - 17:05, 29 August 2019