Chapter 12- Sedimentary Basin Analysis

Question 1

avalonia

Answer 1

microcontinent during the palaeozoic. contained wales, england, part of ireland and part of scotland. located in the southern hemisphere

Question 2

baltica

Answer 2

microcontinent during the palaeozoic. contained the baltic countries. located in the southern hemisphere

Question 3

laurentia

Answer 3

microcontinent in the palaeozoic. contained northern scotland, some of ireland and the north american continent. located in the southern hemisphere

Question 4

iapetus

Answer 4

ocean which existed during the lower palaeozoic. closed due to the collision of laurentia, avalonia and baltica

Question 5

caledonian orogeny

Answer 5

mountain building era named after the latin word for scotland, caldonia lasted from the ordivician to the early devonian

Question 6

terranes

Answer 6

fragments of crustal material broken from one tectonic plate and acreeted onto another. the boundary is usually flat

Question 7

the welsh basin

Answer 7

a sedimentary basin located in the welsh borderlands and central wales. there is a great thickness of sediment representing a zone which had multiple subsidence events