Across
- 2. Hard glassy mineral (SiO2) with conchoidal fracture and no cleavage
- 6. Opaque white quartz variety common in veins (two words no space)
- 7. Gas-bubble cavity preserved in a volcanic rock
- 8. Tectonic regime in which the crust is stretched and thinned
- 10. ___ Group: Silurian volcanic-sedimentary succession of west Dingle
- 13. an anhydrous carbonate mineral composed of calcium magnesium carbonate
- 15. Coarse rock made of angular broken rock fragments cemented together
- 16. Parallel scratches gouged into bedrock by rock fragments embedded in moving ice
- 18. Angle a fold axis or linear feature dips below the horizontal
- 21. Ancient southern supercontinent that rifted apart to form several present-day continents
- 22. Adjective describing landforms deposits or processes associated with ice sheets and glaciers
- 25. Mixing and disturbance of soil or sediment caused by repeated freeze-thaw cycles
- 27. Fault along which blocks slide horizontally past each other parallel to the fault trace (no space)
- 28. Tectonic process in which two continental plates converge and weld together
- 32. Ridge of glacially deposited debris marking the former edge of an ice mass
- 33. Stratigraphic unit made of two or more formations
- 35. Extinct marine arthropod with a three-part exoskeleton an index fossil of the Paleozoic
- 36. Rock formed from compacted volcanic ash
- 37. Polygonal cracks formed as drying mud shrinks (two words no space)
- 38. Bowl-shaped hollow on a mountainside carved by glacial erosion also called a cirque
- 43. Mount ___: the highest peak on the Dingle Peninsula
- 44. Direction of ancient flow reconstructed from cross-bedding or imbrication
- 46. Criteria used to determine the original top of a tilted bed (no space)
- 48. Mass-movement failure involving rotational sliding of a coherent block of rock or sediment
- 51. Term for a sediment whose grains are all of similar size (two words no space)
- 54. Ancient ocean whose closure triggered the Caledonian Orogeny
- 55. a widely distributed trace fossil characterized by intricate root-like structure
- 56. Term for magma or rock rich in magnesium and iron, low in silica
- 57. Area of older rock surrounded by and exposed within younger surrounding rock
- 58. ___ Formation: Silurian unit of the Dunquin Group examined at its boundary with the Mill Cove Formation
- 60. Cone-shaped sediment deposit at the foot of a mountain front (two words no space)
- 62. Flattened lens-shaped pumice fragment within a welded tuff
- 63. Vent releasing volcanic gas and steam without erupting molten rock
- 64. Adjective describing river-channel deposits and processes
- 65. Upward-injected tongue of mud into overlying sand a way-up indicator (two words no space)
Down
- 1. Green primary mineral common in basalt first to weather away
- 3. Concentric ash pellets formed in a wet eruption column (two words no space)
- 4. Marine shelled fossils signalling shallow seas between volcanic eruptions
- 5. Preferred upstream-dipping orientation of disc-shaped clasts in a flow
- 9. Boundary surface between two distinct rock units
- 11. Rapid mass flow of poorly sorted water-saturated sediment (two words no space)
- 12. Mountain-building event produced by collision or convergence of tectonic plates
- 14. Period just before the Devonian; age of the Dunquin Group rocks
- 17. Crystal size shape and arrangement in an igneous rock reflecting its cooling history (two words no space)
- 19. Individual fragment of pre-existing rock within a sedimentary deposit
- 20. Acronym for a vast outpouring of mainly basaltic magma over a short geological interval
- 23. Large early-formed crystal set within a finer-grained igneous matrix
- 24. Network of shallow interconnected channels separated by mid-channel bars (two words no space)
- 26. Inclined layers within a bed used to read palaeocurrent direction (no space)
- 29. Mud fragments torn up and entombed in an overlying bed (three words no space)
- 30. Ancient continent forming the northern landmass before Iapetus closed
- 31. Hard fine-grained sedimentary rock composed of microcrystalline silica
- 32. Fine-grained material surrounding larger clasts in a sedimentary rock
- 34. Basic mappable rock unit with distinct traceable characteristics
- 39. Yellowish-green mineral formed by alteration of mafic igneous rock
- 40. High-grade metamorphic rock with banded mineral layering
- 41. Fossilised evidence of organism activity rather than body parts (two words no space)
- 42. Tuff with flattened squashed pumice fragments forming streaky layers (two words no space)
- 45. Partial melting of crustal rock that generates new felsic magma
- 47. Term for magma or rock rich in silica, feldspar, and quartz
- 49. Fragment of host rock enclosed within an igneous intrusion
- 50. Coarse-grained felsic intrusive igneous rock
- 52. physical and chemical changes/processes that affect sedimentary materials after deposition
- 53. Geologic period (~419-359 Ma) when most of Dingle's red rocks were deposited
- 59. Iron oxide mineral responsible for the red colour of the Old Red Sandstone
- 61. Vesicle infilled with a secondary mineral such as quartz or calcite