1. Geology of the Yorkshire Dales
Part 2: Early Carboniferous

2. Early Carboniferous Basins and dales of limestones and shales
Two distinct regions:
Askrigg Block =
Limestone dales
Craven, Harrogate, Bowland =
Shale basins

3. Up on the blocks Granite-buoyed high LIMY: 3. Yoredale Group
2. Great Scar Limestone Gp
1. Ravenstonedale Group

4. Great Scar Limestone Group
Malham

5. The not-great-for-fossils group
Broken-down + dissolved

6. But some patches
Reef knolls at Malham and Cracoe

7. (Karst & Caves)

8. Down in the basins Tectonic lows Craven, Harrogate and Bowland basins:
MUDDY
2. Craven Group
1. Bowland High Group

9. Blocks & Basins
Cross-section through Malham region

10. Goniatites in mudstones = biostratigraphy
Marine
bands
Goniatites in mudstones = biostratigraphy

11. Dales for shale?
Shale gas potential from organic-rich mudstones