Skye - two great granite controversies

Part of the Shear Zone Channel. The Isle of Skye has provided many geological stories - and this explores two of them.... concerning granites. one helped to settle the great "neptunists v plutonists" debate, the other concerned how granites related to other igneous rocks. And simple field relationships provide the evidence.

[@QuintinJDavies]

Thanks Rob for the video - this area south of Camas Malag was my undegrad mapping area in 94-95!

[@robbutler2095]

A great and classic area for UG mapping projects - I hope you had fun!

[@briandwi2504]

Great video. Interesting story and illuminating to see the geology available to you along a track. Thanks for posting!

[@robbutler2095]

Thanks - yes lots of good stuff that's all pretty accessible. Camas Malag is a great place for students to get into mapping. Bit of exercise needed to get to those outcrops in the Geikie v Judd scrap though - but well worth the hike...

[@user-ij3qo6xl9s]

Thanks. It maybe an evidence from oceanic crust to continental crust. Limestone-gabbro intrusion unit /dolerite dykes- granite intrusion unit.

[@robbutler2095]

Thanks for the comment. These (Tertiary) intrusions are all within ancient continental crust. The basement for Skye is the Lewisian complex ... similar to that visited in a couple for videos here (Gairloch, Torridon).

[@didierfavre2356]

To paraphrase a poor series, "The field is always right."

[@robbutler2095]

Indeed - though we observe it through our eyes/interpretation framework of course. But at least the rocks are there for everyone to debate...