North Cornwall - Geology
Some of the Geological features around the North Cornwall Coast between Marsland Mouth and St Ives
-----------------------
Basic Geology :-
Devonian rocks 417 - 354 million years old (myo ), form the basis of most of Cornwalls Geology.
Subject to deformation during the Variscan Orogeny about 380 - 280 myo.
These are hard rocks, resistant to erosion, often resulting in dramatic sea cliffs .
-----------------------
Carboniferous -
From Tintagel along the North Cornwall Coast to the border with Devon are Carboniferous Rocks (354-290 myo),
intensively folded and faulted by Tectonic Plate movements during the Variscan Orogeny.
------------------------
-----------------------
Basic Geology :-
Devonian rocks 417 - 354 million years old (myo ), form the basis of most of Cornwalls Geology.
Subject to deformation during the Variscan Orogeny about 380 - 280 myo.
These are hard rocks, resistant to erosion, often resulting in dramatic sea cliffs .
-----------------------
Carboniferous -
From Tintagel along the North Cornwall Coast to the border with Devon are Carboniferous Rocks (354-290 myo),
intensively folded and faulted by Tectonic Plate movements during the Variscan Orogeny.
------------------------
![Anticline - Gull Rock (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2200_gull_rock_folds_cornwall_coast_thumb.jpg)
Anticline - Gull Rock (S6)
![Folds - Henna Cliff (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2218_folds_henna_cliff_cornwall_coast_thumb_1.jpg)
Folds - Henna Cliff (S6)
![Load Casts / Caunter Beach (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5413_thumb.4_load_casts_caunter_beach_oldwalls_cornwall_coast.jpg)
Load Casts / Caunter Beach (S6)
![Anticline (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4638_anticline_warren_point_Cornwall_Coast_thumb.jpg)
Anticline (S6)
![Syncline (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4635_syncline_warren_gutter_beach_Cornwall_Coast_thumb.jpg)
Syncline (S6)
![Anticline (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4632_anticline_warren_gutter_beach_Cornwall_Coast_thumb.jpg)
Anticline (S6)
![Anticline (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5651_anticline_sandy_mouth_cornwall_coast_thumb.jpg)
Anticline (S6)
![Slumped Bed (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5650_slumped_bed_sandy_mouth_cornwall_coast_thumb.jpg)
Slumped Bed (S6)
![Cliffs (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4627_sandy_mouth_Cornwall_Coast_thumb.jpg)
Cliffs (S6)
![Waterfall - Sandy Mouth (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2737_waterfall_sandy_mouth_cornwall_coast_thumb.jpg)
Waterfall - Sandy Mouth (S6)
![Sandstone - Sandy Mouth (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2746_sandstone_sandy_mouth_cornwall_coast_thumb.jpg)
Sandstone - Sandy Mouth (S6)
![Load Cast (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5660_load_casts_sandy_mouth_cornwall_coast_thumb.jpg)
Load Cast (S6)
![Ripple Marks (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5693s_ripple_marks_sandy_mouth_cornwall_coast_thumb.jpg)
Ripple Marks (S6)
![Anticline (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4619_anticline_Cornwall_Coast_thumb_2.jpg)
Anticline (S6)
![Slabs (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4618_cliffs_Cornwall_Coast_thumb.jpg)
Slabs (S6)
![Box Fold (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_5695s_box_fold_menachurch_point_cornwall_coast_thumb.jpg)
Box Fold (S6)
![Menachurch Point (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4697_menachurch_point_Cornwall_Coast_thumb_1.jpg)
Menachurch Point (S6)
![Pearces Cove Syncline - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2536_pearces_cove_syncline_cornwall_coast_thumb.jpg)
Pearces Cove Syncline - Bude (S6)
![Anticline - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2534_anticline_cornwall_coast_thumb.jpg)
Anticline - Bude (S6)
![Vertical Strata - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2526_vertical_strata_cornwall_coast_thumb.jpg)
Vertical Strata - Bude (S6)
![Anticline - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2515_anticlines_cornwall_coast_thumb.jpg)
Anticline - Bude (S6)
![Anticline Closeup - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2502_geology_cornwall_coast_thumb.jpg)
Anticline Closeup - Bude (S6)
![Syncline - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_4657_syncline_wrangle_point_bude_Cornwall_Coast_thumb.jpg)
Syncline - Bude (S6)
![Wrangle Point - Bude (S6)](https://amazon.clikpic.com/1cornwall/images/CRN_2529_wrangle_point_cornwall_coast_thumb.jpg)
Wrangle Point - Bude (S6)
![Folds - Efford Beacon - 1 (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2811_efford_beacon_folds_cornwall_coast1_thumb.jpg)
Folds - Efford Beacon - 1 (S7)
![Folds - Efford Beacon - 2 (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2815_efford_beacon_folds_cornwall_coast_thumb.jpg)
Folds - Efford Beacon - 2 (S7)
![Syncline (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2834_syncline_cornwall_coast_thumb.jpg)
Syncline (S7)
![Anticline - Upton Cross Beach (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2835_upton_anticline_cornwall_coast_thumb_1.jpg)
Anticline - Upton Cross Beach (S7)
![Erosion - Higher Longbeak Strand (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_4718_cliffs_higher_longbeak_strand_cornwall_coast_thumb.jpg)
Erosion - Higher Longbeak Strand (S7)
![Anticline - Lower Longbeak (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_4712s_anticline_lower_longbeak_Cornwall_Coast_thumb.jpg)
Anticline - Lower Longbeak (S7)
![Slumped Beds - Widemouth Bay (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_5382_thumb.3_widemouth_bay_geology_cornwall_coast.jpg)
Slumped Beds - Widemouth Bay (S7)
![Slump Breccias - Black Rock - Widemouth Bay (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_4640_slump_breccia_black_rock_widemouth_bay_Cornwall_Coast_thumb.jpg)
Slump Breccias - Black Rock - Widemouth Bay (S7)
![Load Casts - Widemouth Bay (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_4644_thumb.5_load_casts_widemouth_bay_Cornwall_Coast.jpg)
Load Casts - Widemouth Bay (S7)
![Goniatites - Fossils - Wanson Mouth (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_5798_goniatites_fossils_wanson_mouth_cornwall_coast_thumb.jpg)
Goniatites - Fossils - Wanson Mouth (S7)
![Zig Zag Folds - Millook Haven (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_1693_millook_haven_cornish_coast_thumb.jpg)
Zig Zag Folds - Millook Haven (S7)
![Zig Zag Folds - Millook Haven (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2854_zig_zag_folds_millook_haven_cornwall_coast_thumb.jpg)
Zig Zag Folds - Millook Haven (S7)
![Millook Haven (S7)](https://amazon.clikpic.com/1cornwall/images/CRN_2844_millook_haven_cornwall_coast_thumb.jpg)
Millook Haven (S7)
![Load Casts - Crackington Haven (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_5782_thumb.90_load_casts_crackington_haven_cornwall_coast.jpg)
Load Casts - Crackington Haven (S8)
![Flute Casts - Crackington Haven (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_5780_flute_casts_crackington_haven_cornwall_coast_thumb.jpg)
Flute Casts - Crackington Haven (S8)
![Quartz Veins / Siderite - Crackington Haven (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_5795_quartz_veins_siderite_cornwall_coast_thumb.jpg)
Quartz Veins / Siderite - Crackington Haven (S8)
![Recumbent Fold - Crackington Haven (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_2785_2_recumbent_fold_crackington_haven_cornwall_coast_thumb.jpg)
Recumbent Fold - Crackington Haven (S8)
![Angular Recumbent Folds - Tremoutha Haven (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_2790_thumb.2_angular_recumbent_folds_tremotha_haven_cornwall_coast.jpg)
Angular Recumbent Folds - Tremoutha Haven (S8)
![Natural Arch - Northern Door (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4905_northern_door_natural_arch_Cornwall_Coast_thumb.jpg)
Natural Arch - Northern Door (S8)
![Recumbent Folds - Little Strand (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_722_rock_folds_Cornish_Coast_thumb_1.jpg)
Recumbent Folds - Little Strand (S8)
![Chevron Folds - Alder Strand (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4895_chevron_folds_alder_strand_Cornwall_Coast_thumb_1.jpg)
Chevron Folds - Alder Strand (S8)
![Natural Arch - (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4899_natural_arch_Cornwall_Coast_thumb.jpg)
Natural Arch - (S8)
![Voter Run (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4904_voter_run_groove_casts_Cornwall_Coast_thumb.jpg)
Voter Run (S8)
![Folds - Voter Run (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4482_thumb.3_folds_voter_run_Cornwall_Coast.jpg)
Folds - Voter Run (S8)
![Faults - Rusey Beach (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4479_thumb.80_cornwall_coast_rinsey_beach_faults.jpg)
Faults - Rusey Beach (S8)
![Waterfall / Caves - Pentargon Cove (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_2164a_pentargon_waterfall_boscastle_Cornwall_Coast_thumb.jpg)
Waterfall / Caves - Pentargon Cove (S8)
![Folds - Boscastle (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_4749_zig_zag_ruck_folds_Cornwall_Coast_thumb.jpg)
Folds - Boscastle (S8)
![Phyllite / Long Island (S8)](https://amazon.clikpic.com/1cornwall/images/CRN_5180_thumb.1_long_island_cornwall_coast_1.jpg)
Phyllite / Long Island (S8)
![Calcite Vein - Trebarwith Strand (S9)](https://amazon.clikpic.com/1cornwall/images/CRN_5583_calcite_vein_trebarwith_strand_cornwall_coast_thumb.jpg)
Calcite Vein - Trebarwith Strand (S9)
![Boudins - Trebarwith Strand (S9)](https://amazon.clikpic.com/1cornwall/images/CRN_5880_thumb.9_boudins_trebarwith_strand_cornwall_coast.jpg)
Boudins - Trebarwith Strand (S9)
![Lava Bombs - Trebarwith Strand (S9)](https://amazon.clikpic.com/1cornwall/images/CRN_2733_thumb.4_trebarwith_strand_volcanic_lava_bombs_cornwall_coast.jpg)
Lava Bombs - Trebarwith Strand (S9)
![Pillow Lava - Kellan Head (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4579_thumb.80_pillow_lava_kellan_head_port_quin_Cornwall_Coast.jpg)
Pillow Lava - Kellan Head (S10)
![Vesicular Lava - Pentire Head (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4588_thumb.5704_pillow_lava_pentire_cornwall_coast.jpg)
Vesicular Lava - Pentire Head (S10)
![Pillow Lavas - Pentire Head (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4589_vesicular_Lava_pentire_headland_Cornwall_Coast_thumb.jpg)
Pillow Lavas - Pentire Head (S10)
![Purple / Green Slates - Trebetherick (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_3988_purple_green_slates_trebetherick_cornwall_coast_thumb.jpg)
Purple / Green Slates - Trebetherick (S10)
![Quartz Veins / Trebetherick (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_5513_thumb.4_quartz_veins_trebetherick_cornwall_coast.jpg)
Quartz Veins / Trebetherick (S10)
![Sandrock - Trebetherick (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4551_sandrock_trebetherick_Cornwall_Coast_thumb.jpg)
Sandrock - Trebetherick (S10)
![Purple /Green /Grey Slates - Trebetherick (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4548_trebertherick_purple_green_slates_Cornwall_Coast_thumb.jpg)
Purple /Green /Grey Slates - Trebetherick (S10)
![Raised Beach - Trebetherick (S10)](https://amazon.clikpic.com/1cornwall/images/CRN_4546_raised_beach_trebetherick_Cornwall_Coast_thumb.jpg)
Raised Beach - Trebetherick (S10)
![Purple / Green Slates - Butter Hole (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_1754_butter_hole_cornish_coast_thumb.jpg)
Purple / Green Slates - Butter Hole (S11)
![Marble Cliff - 1 (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_1813_marble_cliff_cornwall_coast_thumb.jpg)
Marble Cliff - 1 (S11)
![Marble Cliff - 2 (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_1817_marble_cliff_cornwall_coast_thumb.jpg)
Marble Cliff - 2 (S11)
![Sandrock / Haryln Bay (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_5554_thumb.5_sandrock_harlyn_Bay_cornwall_coast.jpg)
Sandrock / Haryln Bay (S11)
![Volcanic Rock - Trevose Head Quarry (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_5729_trevose_quarry_volcanic_rocks_cornwall_coast_thumb.jpg)
Volcanic Rock - Trevose Head Quarry (S11)
![Argillite - Trevose Head (S11)](https://amazon.clikpic.com/1cornwall/images/CRN_4771_trevose_head_argillite_Cornwall_Coast_thumb.jpg)
Argillite - Trevose Head (S11)
![Angular Recumbent Fold - Trerathick Cove (S12)](https://amazon.clikpic.com/1cornwall/images/CRN_2022_angular_recumbent_fold_cornish_coast_thumb.jpg)
Angular Recumbent Fold - Trerathick Cove (S12)
![Fault - Stem Cove (S12)](https://amazon.clikpic.com/1cornwall/images/CRN_4529_stem_cove_fault_Cornwall_Coast_thumb.jpg)
Fault - Stem Cove (S12)
![Dartmouth Group Coloured Slates - Watergate Beach (S12)](https://amazon.clikpic.com/1cornwall/images/CRN_4538_watergate_beach_dartmouth_group_slates_Cornwall_Coast_thumb.jpg)
Dartmouth Group Coloured Slates - Watergate Beach (S12)
![Sandrock - Little Fistral Newquay (S13)](https://amazon.clikpic.com/1cornwall/images/CRN_2916_sandrock_newquay_cornwall_coast_thumb.jpg)
Sandrock - Little Fistral Newquay (S13)
![Flowstone - St. Cuthbert's Well / Holywell (S13)](https://amazon.clikpic.com/1cornwall/images/CRN_4599_thumb.00_holywell_flowstone_Cornwall_Coast.jpg)
Flowstone - St. Cuthbert's Well / Holywell (S13)
![Lamprophyre Dyke - Holywell Bay (S13)](https://amazon.clikpic.com/1cornwall/images/CRN_4604_lamprophyre_dyke_holywell_bay_Cornwall_Coast_thumb_1.jpg)
Lamprophyre Dyke - Holywell Bay (S13)
![Elvan Dyke - Hoblyn's Cove (S13)](https://amazon.clikpic.com/1cornwall/images/CRN_4076_elvan_dyke_cornwall_coast_thumb.jpg)
Elvan Dyke - Hoblyn's Cove (S13)
![Greisen Bordered Veins - Cligga Head (S14)](https://amazon.clikpic.com/1cornwall/images/CRN_1948_cligga_head_greissen_veins_cornwall_coast_thumb.jpg)
Greisen Bordered Veins - Cligga Head (S14)
![Elvan Dyke - Wheal Coates - Chapel Porth (S14)](https://amazon.clikpic.com/1cornwall/images/CRN_5764_chapel_porth_wheal_coates_cornwall_coast_thumb.jpg)
Elvan Dyke - Wheal Coates - Chapel Porth (S14)
![Fault - Chapel Porth (S14)](https://amazon.clikpic.com/1cornwall/images/CRN_5766_fault_chapel_porth_cornwall_coast_thumb.jpg)
Fault - Chapel Porth (S14)
![Fold - Porthtowan (S14)](https://amazon.clikpic.com/1cornwall/images/CRN_4986_fold_porthtowan_Cornwall_Coast_thumb_1.jpg)
Fold - Porthtowan (S14)
![Prehistoric Forest - Portreath - (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_2768_thumb.9_portreath_submerged_forest_cornwall_coast1.jpg)
Prehistoric Forest - Portreath - (S15)
![Folds - Godrevy Point (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5778_folds_godrevy_point_cornwall_coast_thumb.jpg)
Folds - Godrevy Point (S15)
![Folds - Godrevy Point (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5776_folds_godrevy_point_cornwall_coast_thumb.jpg)
Folds - Godrevy Point (S15)
![Folds - Godrevy Point (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5771_folds_godrevy_point_cornwall_coast_thumb.jpg)
Folds - Godrevy Point (S15)
![Sandrock - Godrevy (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_2710_sandrock_godrevy_point_cornwall_coast_thumb.jpg)
Sandrock - Godrevy (S15)
![Raised Beach - Godrevy (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_2708_thumb.9_raised_beach_godrevy_point_cornwall_coast.jpg)
Raised Beach - Godrevy (S15)
![Recumbent Isoclinal Folds - Godrevy (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_2705_recumbent_isoclinal_folds_godrevy_point_cornwall_coast1_thumb.jpg)
Recumbent Isoclinal Folds - Godrevy (S15)
![Raised Beach - Godrevy (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5768_raised_beach_godrevy_cornwall_coast_thumb.jpg)
Raised Beach - Godrevy (S15)
![Glacial Erratic - Godrevy Rocks (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5769_glacial_erratic_cornwall_coast_thumb.jpg)
Glacial Erratic - Godrevy Rocks (S15)
![Folds - Gwithian (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_2731_folding_iron_doors_gwithian_towans_cornwall_coast_thumb.jpg)
Folds - Gwithian (S15)
![Tufa - Porth Kidney Sands (S15)](https://amazon.clikpic.com/1cornwall/images/CRN_5551_thumb.2_tufa_porth_kidney_cornwall_coast.jpg)