92:, downslope transfers of sediment sometimes oblique to strike of the slope and along the axis of the central trough and concentrate on palaeoslope data (slope to the SE). However, Wignall & Best (2000) provided evidence for basin infill that is inferred on their own and previous palaeocurrent data (majority to the NE in all post-Clare Shale sediments), the assumption that northern County Clare was distal to land mass supplying sediment and that a model explaining the deposition needs no central trough aligned along the present-day Shannon Estuary.
88:
basin’s palaeogeography especially the existence or not of a central trough has been hotly debated in a recent paper (see
Martinsen & Collinson/Wignall & Best 2002), which compared the models of Collinson et al (1991) and Wignall & Best (2000). Collinson et al (1991) concentrate and expand on the model of Hodson (1954a,b) and Hodson & Lewarne (1961) that refers to a central trough model. They present an argument for a more complicated relationship between
87:
geology is well exposed along the whole of County Clare’s coast. Martinsen & Collinson (2002, pp 523) comment that the WINB has a “…wider significance …close analogy to hydrocarbon-bearing successions offshore Europe, North
America and West Africa”. The direction of sediment infill and the
31:
During the
Carboniferous, County Clare was one of several interconnected basins. Clare forms part of the ‘The Western Irish Namurian Basin’ (WINB) - laterally linked from Nova Scotia to Belgium (Maynard et al, 1997; Calder, 1998), and similar to the Bude Formations, Cornwall (Higgs, 2004).
48:) begin to rise, creating warm, shallow shelf seas around the equator. Flourishing coral and crinoids caused limestone build-up in these low latitudes. The majority of northern County Clare is formed of this
83:
The
Western Irish Namurian Basin has been heavily studied in recent years mostly on the southern sections of County Clare.
60:
41:
17:
64:
52:
84:
68:
49:
45:
72:
59:). Sea levels fluctuated in the Carboniferous, most noticeable in the
56:
63:
as sea levels fell and marine life became extinct. A combination of
89:
71:sea deeping associated with the opening of the
8:
44:, sea levels (that had fallen in the
7:
24:
1:
106:
79:Research in County Clare
75:suture caused deeping.
42:Early Carboniferous
61:Mid-Carboniferous
97:
27:Regional Context
18:User:MeanStreets
105:
104:
100:
99:
98:
96:
95:
94:
81:
38:
29:
22:
21:
20:
12:
11:
5:
103:
101:
90:delta shifting
80:
77:
37:
34:
28:
25:
23:
15:
14:
13:
10:
9:
6:
4:
3:
2:
102:
93:
91:
86:
78:
76:
74:
70:
66:
62:
58:
54:
51:
47:
43:
36:Carboniferous
35:
33:
26:
19:
82:
39:
30:
57:The Burren
65:isostatic
53:Limestone
85:Namurian
69:eustatic
50:Variscan
46:Devonian
73:Iapetus
40:In the
55:(See
16:<
67:and
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.