Caledonian magmatism, Grampian Highlands - Revision history

Dbk at 15:36, 31 January 2018

2018-01-31T15:36:46Z

← Older revision		Revision as of 16:36, 31 January 2018
Line 1:		Line 1:
	'''From: Stephenson, D, and Gould, D. 1995. [[British regional geology: Grampian Highlands\|British regional geology: Grampian Highlands.]] Fourth edition. Keyworth, Nottingham: British Geological Survey.'''		{{GHRG}}

	== Caledonian magmatism, introduction ==		== Caledonian magmatism, introduction ==

Scotfot at 08:03, 9 July 2015

2015-07-09T08:03:14Z

← Older revision		Revision as of 09:03, 9 July 2015
Line 144:		Line 144:
	\| 96\|\|Glen Gairn\|\|404 ± 6\|\|Rb/Sr WRI\|\|0.7081 ± 0.0015\|\|Harrison and Hutchinson, 1987		\| 96\|\|Glen Gairn\|\|404 ± 6\|\|Rb/Sr WRI\|\|0.7081 ± 0.0015\|\|Harrison and Hutchinson, 1987
	\|-		\|-
	\| 98\|\|"Mount Battock"\|\|416 ± 4\|\|Rb/Sr WRI\|\|0.7058 ± 0.0004\|\|Harrison and Hutchinson, 1987		\| 98\|\|Mount Battock\|\|416 ± 4\|\|Rb/Sr WRI\|\|0.7058 ± 0.0004\|\|Harrison and Hutchinson, 1987
	\|-		\|-
	\| 102\|\|Hill of Fare\|\|413 ± 3\|\|Rb/Sr WRI\|\|0.7057 ± 0.0003\|\|Halliday et al., 1979		\| 102\|\|Hill of Fare\|\|413 ± 3\|\|Rb/Sr WRI\|\|0.7057 ± 0.0003\|\|Halliday et al., 1979
Line 152:		Line 152:
	\| 104\|\|Middleton\|\|398 ± 19\|\|Rb/Sr WR\|\|0.7092 ± 0.0181\|\|Darbyshire and Beer, 1988		\| 104\|\|Middleton\|\|398 ± 19\|\|Rb/Sr WR\|\|0.7092 ± 0.0181\|\|Darbyshire and Beer, 1988
	\|-		\|-
	\| 105\|\|"Peterhead\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968		\| 105\|\|Peterhead\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968
	\|-		\|-
	\| colspan = "6" \| '''Lower Old Red Sandstone volcanic rocks'''		\| colspan = "6" \| '''Lower Old Red Sandstone volcanic rocks'''

Scotfot at 07:02, 9 July 2015

2015-07-09T07:02:32Z

← Older revision		Revision as of 08:02, 9 July 2015
Line 18:		Line 18:
	:: [[Lower Old Red Sandstone volcanism, Caledonian magmatism, Grampian Highlands\|7. Lower Old Red Sandstone volcanism]]		:: [[Lower Old Red Sandstone volcanism, Caledonian magmatism, Grampian Highlands\|7. Lower Old Red Sandstone volcanism]]

	The distribution of components of these groups, except for the minor intrusions, is shown on P915434; each is numbered and referenced in italics in the ~~text~~, e.g. ''Dunfallandy Hill Granite (8)''.		The distribution of components of these groups, except for the minor intrusions, is shown on P915434; each is numbered and referenced in italics in the above articles, e.g. '''''Dunfallandy Hill Granite''''' (8).

	The age of an intrusion with respect to the tectonic history of the surrounding rocks cannot always be determined from the local field evidence, especially in areas of poor exposure, and hence certain intrusions have been assigned to a suite by analogy with petrologically similar intrusions whose structural setting is better known. It should be noted also that the three latest suites were largely contemporaneous.		The age of an intrusion with respect to the tectonic history of the surrounding rocks cannot always be determined from the local field evidence, especially in areas of poor exposure, and hence certain intrusions have been assigned to a suite by analogy with petrologically similar intrusions whose structural setting is better known. It should be noted also that the three latest suites were largely contemporaneous.

Scotfot at 07:00, 9 July 2015

2015-07-09T07:00:19Z

← Older revision		Revision as of 08:00, 9 July 2015
Line 23:		Line 23:

	{\| border="1" class="wikitable"		{\| border="1" class="wikitable"
	\| align="center" style="background:#f0f0f0;"\|'''On ~~Pxxxxxx~~'''		\| align="center" style="background:#f0f0f0;"\|'''On P915434'''
	\| align="center" style="background:#f0f0f0;"\|'''Name'''		\| align="center" style="background:#f0f0f0;"\|'''Name'''
	\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''		\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''

Scotfot at 06:59, 9 July 2015

2015-07-09T06:59:43Z

← Older revision		Revision as of 07:59, 9 July 2015
Line 27:		Line 27:
	\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''		\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''
	\| align="center" style="background:#f0f0f0;"\|'''Type'''		\| align="center" style="background:#f0f0f0;"\|'''Type'''
	\| align="center" style="background:#f0f0f0;"\|'''87Sr/~~86Sri~~'''		\| align="center" style="background:#f0f0f0;"\|'''87Sr/86Sr<sub>i</sub>'''
	\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''		\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''
	\|-		\|-

Scotfot at 06:58, 9 July 2015

2015-07-09T06:58:16Z

← Older revision		Revision as of 07:58, 9 July 2015
Line 30:		Line 30:
	\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''		\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''
	\|-		\|-
	\| colspan = "6" \| Pre-tectonic basic magmatism		\| colspan = "6" \| '''Pre-tectonic basic magmatism'''
	\|-		\|-
	\| 2\|\|Tayvallich\|\|595 ± 4\|\|U/Pb Zr\|\|—\|\|Halliday et al., 1989		\| 2\|\|Tayvallich\|\|595 ± 4\|\|U/Pb Zr\|\|—\|\|Halliday et al., 1989
	\|-		\|-
	\| colspan = "6" \| Syntectonic granitic intrusions		\| colspan = "6" \| '''Syntectonic granitic intrusions'''
	\|-		\|-
	\| 6\|\| Ben Vuirich\|\|590 ± 2\|\|U/Pb Zr\|\|—\|\|Rogers et al., 1989		\| 6\|\| Ben Vuirich\|\|590 ± 2\|\|U/Pb Zr\|\|—\|\|Rogers et al., 1989
Line 42:		Line 42:
	\| 9\|\|Glen Clova (Rough Craig)\|\|549 ± 44\|\|Rb/Sr WR\|\|0.7166 ± 0.0024\|\|Robertson, 1994		\| 9\|\|Glen Clova (Rough Craig)\|\|549 ± 44\|\|Rb/Sr WR\|\|0.7166 ± 0.0024\|\|Robertson, 1994
	\|-		\|-
	\| colspan = "6" \| Syn- to late-tectonic basic and ultramafic intrusions		\| colspan = "6" \| '''Syn- to late-tectonic basic and ultramafic intrusions'''
	\|-		\|-
	\| 14\|\|Insch\|\|489 ± 17\|\|Rb/Sr WRI\|\|0.7117 ± 0.0003\|\|Pankhurst, 1970		\| 14\|\|Insch\|\|489 ± 17\|\|Rb/Sr WRI\|\|0.7117 ± 0.0003\|\|Pankhurst, 1970
Line 50:		Line 50:
	\| 27\|\|Haddo House\|\|491 ± 6\|\|K/Ar Bi\|\|—\|\|Brown et al., 1965		\| 27\|\|Haddo House\|\|491 ± 6\|\|K/Ar Bi\|\|—\|\|Brown et al., 1965
	\|-		\|-
	\| colspan = "6" \| Late-tectonic granitoid intrusions		\| colspan = "6" \| '''Late-tectonic granitoid intrusions'''
	\|-		\|-
	\| colspan = "6" \|(i) North-eastern biotite-muscovite-granites		\| colspan = "6" \|(i) North-eastern biotite-muscovite-granites
Line 88:		Line 88:
	\| 53\|\|Kennethmont\|\|453 ± 4\|\|Rb/Sr WRI\|\|0.7145 ± 0.0013\|\|Pankhurst, 1974		\| 53\|\|Kennethmont\|\|453 ± 4\|\|Rb/Sr WRI\|\|0.7145 ± 0.0013\|\|Pankhurst, 1974
	\|-		\|-
	\| colspan = "6" \| Post-tectonic granitoid intrusions		\| colspan = "6" \| '''Post-tectonic granitoid intrusions'''
	\|-		\|-
	\| colspan = "6" \|South Grampian Suite		\| colspan = "6" \|(i) South Grampian Suite
	\|-		\|-
	\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966		\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966
Line 154:		Line 154:
	\| 105\|\|"Peterhead\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968		\| 105\|\|"Peterhead\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968
	\|-		\|-
	\| colspan = "6" \| Lower Old Red Sandstone volcanic rocks		\| colspan = "6" \| '''Lower Old Red Sandstone volcanic rocks'''
	\|-		\|-
	\| 108\|\|Lorn Plateau\|\|400 ± 5\|\|Rb/Sr WRI\|\|0.7047\|\|Clayburn et al., 1983		\| 108\|\|Lorn Plateau\|\|400 ± 5\|\|Rb/Sr WRI\|\|0.7047\|\|Clayburn et al., 1983
Line 163:		Line 163:
	\|-		\|-
	\| colspan = "6" \| 1 Average for complex 2 Appinitic diorite 3 Appinite 4 Meall Odhar Granite 5 Central Starav Granite 6 Tonalite and granodiorite 7 Granite.		\| colspan = "6" \| 1 Average for complex 2 Appinitic diorite 3 Appinite 4 Meall Odhar Granite 5 Central Starav Granite 6 Tonalite and granodiorite 7 Granite.
			\|}

	==[[References, Grampian Highlands\|Full list of references]]==		==[[References, Grampian Highlands\|Full list of references]]==
	[[Category:Grampian Highlands]]		[[Category:Grampian Highlands]]

Scotfot at 06:54, 9 July 2015

2015-07-09T06:54:14Z

← Older revision		Revision as of 07:54, 9 July 2015
Line 152:		Line 152:
	\| 104\|\|Middleton\|\|398 ± 19\|\|Rb/Sr WR\|\|0.7092 ± 0.0181\|\|Darbyshire and Beer, 1988		\| 104\|\|Middleton\|\|398 ± 19\|\|Rb/Sr WR\|\|0.7092 ± 0.0181\|\|Darbyshire and Beer, 1988
	\|-		\|-
	\| 105\|\|"Peterhead		\| 105\|\|"Peterhead\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968
	\|-
	~~\| "~~\|\|406 ± 13 volcanic rock\|\|Rb/Sr Mins \|\|—\|\|Bell, 1968
	\|-		\|-
	\| colspan = "6" \| Lower Old Red Sandstone volcanic rocks		\| colspan = "6" \| Lower Old Red Sandstone volcanic rocks
Line 161:		Line 159:
	\|-		\|-
	\| \|\|\|\|421 - 413\|\|Ar degassing\|\|—\|\|Thirlwall, 1988		\| \|\|\|\|421 - 413\|\|Ar degassing\|\|—\|\|Thirlwall, 1988
			\|-
	\| colspan = "6" \| NB All Rb/Sr and K/Ar ages recalculated using the decay constants of Steiger and Jaeger, 1977. WR = Whole rock (no isochron) WRI = Whole rock isochron WRMI = Whole rock – mineral isochron Mins = Mineral age (no isochron) Bi = Biotite Zr = Zircon Mon = Monazite Sph = Sphene		\| colspan = "6" \| NB All Rb/Sr and K/Ar ages recalculated using the decay constants of Steiger and Jaeger, 1977. WR = Whole rock (no isochron) WRI = Whole rock isochron WRMI = Whole rock – mineral isochron Mins = Mineral age (no isochron) Bi = Biotite Zr = Zircon Mon = Monazite Sph = Sphene
	\|-		\|-

Scotfot at 06:52, 9 July 2015

2015-07-09T06:52:48Z

← Older revision		Revision as of 07:52, 9 July 2015
Line 90:		Line 90:
	\| colspan = "6" \| Post-tectonic granitoid intrusions		\| colspan = "6" \| Post-tectonic granitoid intrusions
	\|-		\|-
	\| (colspan = "6" \|South Grampian Suite		\| colspan = "6" \|South Grampian Suite
	\|-		\|-
	\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966		\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966
Line 160:		Line 160:
	\| 108\|\|Lorn Plateau\|\|400 ± 5\|\|Rb/Sr WRI\|\|0.7047\|\|Clayburn et al., 1983		\| 108\|\|Lorn Plateau\|\|400 ± 5\|\|Rb/Sr WRI\|\|0.7047\|\|Clayburn et al., 1983
	\|-		\|-
	\| colspan = "6" \| NB All Rb/Sr and K/Ar ages recalculated using the decay constants of Steiger and Jaeger, 1977. WR = Whole rock (no isochron) WRI = Whole rock isochron WRMI = Whole rock – mineral isochron Mins = Mineral age (no isochron) Bi = Biotite Zr = Zircon Mon = Monazite Sph = Sphene~~\|\|\|\|421 - 413\|\|Ar degassing\|\|—\|\|Thirlwall, 1988~~		\| \|\|\|\|421 - 413\|\|Ar degassing\|\|—\|\|Thirlwall, 1988
			\| colspan = "6" \| NB All Rb/Sr and K/Ar ages recalculated using the decay constants of Steiger and Jaeger, 1977. WR = Whole rock (no isochron) WRI = Whole rock isochron WRMI = Whole rock – mineral isochron Mins = Mineral age (no isochron) Bi = Biotite Zr = Zircon Mon = Monazite Sph = Sphene
	\|-		\|-
	\| colspan = "6" \| 1 Average for complex 2 Appinitic diorite 3 Appinite 4 Meall Odhar Granite 5 Central Starav Granite 6 Tonalite and granodiorite 7 Granite.		\| colspan = "6" \| 1 Average for complex 2 Appinitic diorite 3 Appinite 4 Meall Odhar Granite 5 Central Starav Granite 6 Tonalite and granodiorite 7 Granite.

Scotfot at 06:49, 9 July 2015

2015-07-09T06:49:50Z

← Older revision		Revision as of 07:49, 9 July 2015
Line 32:		Line 32:
	\| colspan = "6" \| Pre-tectonic basic magmatism		\| colspan = "6" \| Pre-tectonic basic magmatism
	\|-		\|-
	\| 2\|Tayvallich\|595 ± 4\|U/Pb Zr\|—\|Halliday et al., 1989		\| 2\|\|Tayvallich\|\|595 ± 4\|\|U/Pb Zr\|\|—\|\|Halliday et al., 1989
	\|-		\|-
	\| colspan = "6" \| Syntectonic granitic intrusions		\| colspan = "6" \| Syntectonic granitic intrusions

Scotfot at 06:49, 9 July 2015

2015-07-09T06:49:00Z

← Older revision		Revision as of 07:49, 9 July 2015
Line 32:		Line 32:
	\| colspan = "6" \| Pre-tectonic basic magmatism		\| colspan = "6" \| Pre-tectonic basic magmatism
	\|-		\|-
	\| 2\|\|Tayvallich\|\|595 ± 4\|\|U/Pb Zr\|\|—\|\|Halliday et al., 1989		\| 2\|Tayvallich\|595 ± 4\|U/Pb Zr\|—\|Halliday et al., 1989
	\|-		\|-
	\| colspan = "6" \| Syntectonic granitic intrusions		\| colspan = "6" \| Syntectonic granitic intrusions
Line 43:		Line 43:
	\|-		\|-
	\| colspan = "6" \| Syn- to late-tectonic basic and ultramafic intrusions		\| colspan = "6" \| Syn- to late-tectonic basic and ultramafic intrusions
	\|-
	~~\| \|\|\|\|\|\|\|\|\|\|~~
	\|-		\|-
	\| 14\|\|Insch\|\|489 ± 17\|\|Rb/Sr WRI\|\|0.7117 ± 0.0003\|\|Pankhurst, 1970		\| 14\|\|Insch\|\|489 ± 17\|\|Rb/Sr WRI\|\|0.7117 ± 0.0003\|\|Pankhurst, 1970
Line 54:		Line 52:
	\| colspan = "6" \| Late-tectonic granitoid intrusions		\| colspan = "6" \| Late-tectonic granitoid intrusions
	\|-		\|-
	\| (i) North-eastern biotite-muscovite-granites~~\|\|\|\|\|\|\|\|\|\|~~		\| colspan = "6" \|(i) North-eastern biotite-muscovite-granites
	\|-		\|-
	\| 26\|\|Belhelvie pegmatites\|\|472 ± 5\|\|Rb/Sr WRI\|\|0.7185 ± 0.0016\|\|van Breemen and Boyd, 1972		\| 26\|\|Belhelvie pegmatites\|\|472 ± 5\|\|Rb/Sr WRI\|\|0.7185 ± 0.0016\|\|van Breemen and Boyd, 1972
Line 72:		Line 70:
	\| 43\|\|Longmanhill\|\|470 ± 50\|\|Rb/Sr WRI\|\|—\|\|Pankhurst, 1974		\| 43\|\|Longmanhill\|\|470 ± 50\|\|Rb/Sr WRI\|\|—\|\|Pankhurst, 1974
	\|-		\|-
	\| (ii) North-western biotite-muscovite-granites~~\|\|\|\|\|\|\|\|\|\|~~		\| colspan = "6" \|(ii) North-western biotite-muscovite-granites
	\|-
	~~\| \|\|\|\|\|\|\|\|\|\|~~
	\|-		\|-
	\| 46\|\|Ardclach\|\|475 ± 7\|\|U/Pb Mon\|\|—\|\|Zaleski, 1983		\| 46\|\|Ardclach\|\|475 ± 7\|\|U/Pb Mon\|\|—\|\|Zaleski, 1983
Line 88:		Line 84:
	\| 52\|\|Loch Laggan\|\|439 ± 7\|\|Rb/Sr Mins\|\|0.705 - 0.718\|\|Clayburn, 1981		\| 52\|\|Loch Laggan\|\|439 ± 7\|\|Rb/Sr Mins\|\|0.705 - 0.718\|\|Clayburn, 1981
	\|-		\|-
	\| (iii) North-eastern diorites~~\|\|\|\|\|\|~~to granodiorites~~\|\|\|\|~~		\| colspan = "6" \|(iii) North-eastern diorites to granodiorites
	\|-		\|-
	\| 53\|\|Kennethmont\|\|453 ± 4\|\|Rb/Sr WRI\|\|0.7145 ± 0.0013\|\|Pankhurst, 1974		\| 53\|\|Kennethmont\|\|453 ± 4\|\|Rb/Sr WRI\|\|0.7145 ± 0.0013\|\|Pankhurst, 1974
Line 94:		Line 90:
	\| colspan = "6" \| Post-tectonic granitoid intrusions		\| colspan = "6" \| Post-tectonic granitoid intrusions
	\|-		\|-
	\| (i)\|~~\|(i)~~ South Grampian Suite~~\|\|\|\|\|\|\|\|~~		\| (colspan = "6" \|South Grampian Suite
	\|-		\|-
	\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966		\| 56\|\|Garabal Hill–Glen Fyne\|\|406 ± 41\|\|Rb/Sr WRMI\|\|0.705 ± 0.003\|\|Summerhayes, 1966

← Older revision		Revision as of 08:00, 9 July 2015
Line 23:		Line 23:

	{\| border="1" class="wikitable"		{\| border="1" class="wikitable"
	\| align="center" style="background:#f0f0f0;"\|'''On ~~Pxxxxxx~~'''		\| align="center" style="background:#f0f0f0;"\|'''On P915434'''
	\| align="center" style="background:#f0f0f0;"\|'''Name'''		\| align="center" style="background:#f0f0f0;"\|'''Name'''
	\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''		\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''

← Older revision		Revision as of 07:59, 9 July 2015
Line 27:		Line 27:
	\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''		\| align="center" style="background:#f0f0f0;"\|'''Age (Ma)'''
	\| align="center" style="background:#f0f0f0;"\|'''Type'''		\| align="center" style="background:#f0f0f0;"\|'''Type'''
	\| align="center" style="background:#f0f0f0;"\|'''87Sr/~~86Sri~~'''		\| align="center" style="background:#f0f0f0;"\|'''87Sr/86Sr<sub>i</sub>'''
	\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''		\| align="center" style="background:#f0f0f0;"\|'''Geochronological reference'''
	\|-		\|-