Editing Lower Old Red Sandstone volcanism, Caledonian magmatism, Grampian Highlands

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== Highland Border ==
 
== Highland Border ==
A few outliers of Lower Old Red Sandstone rocks containing lavas overlie Dalradian and Highland Border Complex rocks unconformably in the '''''Forest of Alyth''''' area (114) and near '''''Monzie''''' (115). They occur as discontinuous faulted exposures, but have been correlated with the main Strathmore sequence of the Midland Valley by Armstrong and Paterson (1970). A distinctive dacitic ignimbrite, the ‘Lintrathen Porphyry’, occuring from the Forest of Alyth to the North Esk, belongs to the Lochkovian Crawton Group, while the basaltic and andesitic lavas of the Forest of Alyth and Comrie are assigned to the immediately overlying Arbuthnott Group (also Lochkovian).
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A few outliers of Lower Old Red Sandstone rocks containing lavas overlie Dalradian and Highland Border Complex rocks unconformably in the '''''Forest of Alyth''''' area (114) and near'''''Monzie'''''(115). They occur as discontinuous faulted exposures, but have been correlated with the main Strathmore sequence of the Midland Valley by Armstrong and Paterson (1970). A distinctive dacitic ignimbrite, the ‘Lintrathen Porphyry’, occuring from the Forest of Alyth to the North Esk, belongs to the Lochkovian Crawton Group, while the basaltic and andesitic lavas of the Forest of Alyth and Comrie are assigned to the immediately overlying Arbuthnott Group (also Lochkovian).
  
 
== Kintyre ==
 
== Kintyre ==

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