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Day 312 : It is andesite week here at project Rock365. This one is a plagphyric, amygdaloidal andesite from west of Belledune, New Brunswick, Canada. Keele collection.

Day 311 : A porphyritic micromonzonite from Furnace, Argyll and Bute, Scotland. Keele collection.

Day 310 : Running a field course in Ercall Quarries, Shropshire, England for the third time in two weeks. This is the unconformity (nonconformity) between the Late Precambrian (~560Ma) Ercall Granophyre showing weathering at its upper surface and the breccia facies of the (~535Ma) Lower Cambrian Wrekin Quartzite.

Day 309 : Anorthosite from the Swedish island of Älgön. Keele collection.

Day 308 : The intermediate igneous rock monzonite from the Lettermore Quarry, Ben Loyal, Highlands, Scotland. Keele collection.

Day 307 : Appenite from the Silurian Clerkhill Appenite Suite, from the shore of Loch Salachaidh, east of Bettyhill (Am Blaran Odhar), Thurso, Scotland. Keele collection.

Day 306 : An appinite (hornblende diorite) from Appin. This sample from Cuil Bay, Ardsheal Peninsula, Kentallen, Argyll, Scotland. Keele collection.

Day 305 : A glacially striated Carboniferous Limestone clast from the glacial till (diamicton) at Morcyn, south of Moelfre, Anglesey, Wales.

Day 304 : Still on Anglesey on a glacial landform fieldtrip. Much discussion relating to the relationship between the fluvioglacial channel and the near vertical faulting. It was suggested that an ice block buried within the sediments melts out causes subsidence and localises the channel. From Gored Tre-castell, near Beaumaris, …

Day 303 : A weekend away in Anglesey, Wales on a glacial landforms fieldtrip. This is the bed rock at Trwyn Cemlyn, near Wylfa Head. The Late Proterozoic phyllites of the New Harbour Group have had their colour altered by fluid passing along small faults.