GeologyRocks

Precambrian History of England and Wales

This is the companion tutorial to the Precambrian History of the Scotland.

This tutorial looks at the Precambrian of England and Wales which by the end of the Precambrian were on a completely different continent and separated from what is now Scotland by the Iapetus Ocean.

Geological history of UK - Part 1

This slideshow covers the history of the UK from the Cambrian (550 Million years ago) to the Devonian (360 Million years ago).  read more »

VMS Deposits on Cyprus

Ophiolite-hosted VHMS (Volcanic-Hosted Massive Sulphide) deposits, also known as Cyprus-type VHMS deposits, are seen in at least 25 of the worlds more than 200 known ophiolite terranes. The term Cyprus-type should now be considered a bit of a misnomer, as the Troodos ophiolite - to which the Cyprus-type name refers - is not a typical Mid-ocean ridge ophiolite - indeed it is considered to be a supra-subduction zone ophiolite, similar to the present day Mariana-Bonin arc.

The Geology of Cyprus

Cyprus is situated in the easternmost part of the Mediterranean, around 80 miles from Turkey in the north, around 100 miles from the coasts of Syria and Lebanon to the east and, to the south, around 300 miles from Egypt and Israel.

Palaeozoic History of the UK - Part 1: Cambrian to Silurian

During the early Palaeozoic Scotland and England were still on separate continents, Laurentia and Avalonia respectively. Cambrian, Ordovician and Silurian rocks are found mainly in Scotland and Wales. This article covers the time period 550Ma to around 410Ma.

Precambrian History of Scotland

The Precambrian of the UK is mainly located in northern Scotland, however there are outcrops in England and Wales also. The oldest rock constituents found there date to around 3450Ma and belong to the Lewisian complex. The Precambrian formations are (youngest to oldest):

• Dalradian
• Moine
• Torridonian
• Lewisian

The location of these formations is shown in Figure 1a and a sketch cross section is shown in Figure 1b.

Introduction to the Geological Features of the Moon

The Moon is the only natural satellite of the Earth and formed at about the same time, over four and a half billion years ago, but has not evolved in the same way. Lacking an atmosphere, water and life, and having cooled more rapidly due to its smaller size, much of the surface has not been changed significantly for billions of years.