View source for OR/14/040 Appendix 1 Representative lithostratigraphical reference specimens held by the British Geological Survey in the National Geoscience Date Centre, Keyworth, Nottingham

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'''West Falkland Group (LX1027&nbsp;–&nbsp;LX1039)''' 
 
LX1027. Port Stephens Formation, South Harbour Member. Borehole core specimen of pale grey, coarse-grained quartz sandstone. Seal Rookery Stream, north-west side of Port Edgar, West Falkland [51° 58’ South, 60° 15’ West].

LX1028. Port Stephens Formation, Fish Creek Member. Coarse-grained quartz sandstone with small quartzose pebbles. Hawk Rock, near Saddle House, West Falkland [51° 39’ South, 59° 56’ West].

LX1029.  Port  Stephens  Formation.  Pale  grey,  quartzo-feldspathic  sandstone  with   ''Skolithos'' burrows. West side of Elephant Bay, Pebble Island, West Falkland [51° 18’ South, 59° 35’ West].

LX1030.  Port  Stephens  Formation.  Pale  grey,  quartzo-feldspathic  sandstone  with   ''Skolithos'' burrows. West side of Elephant Bay, Pebble Island, West Falkland [51° 18’ South, 59° 35’ West].

LX1031. Fox Bay Formation. Laminated, yellow-brown micaceous sandstone with coquina of broken brachiopod shells and crinoid ossicles. Canard Cove, Port Louis Harbour, Berkeley Sound, East Falkland [51° 33’ South, 58° 09’ West].

LX1032. Fox Bay Formation. Laminated, yellow-brown micaceous sandstone with coquina of broken brachiopod shells and crinoid ossicles. Canard Cove, Port Louis Harbour, Berkeley Sound, East Falkland [51° 33’ South, 58° 09’ West].

LX1033. Port Philomel Formation. Fine-grained, yellow-brown micaceous sandstone with carbonised plant fragments. East side of San Carlos Water, East Falkland [51° 33’ South, 59° 02’ West].

LX1034. Port Stanley Formation Pale grey quartzite with cross-lamination picked-out by mud laminae. Mary Hill, near Stanley, East Falkland [51° 41’ South, 57° 47’ West].

LX1035. Port Stanley Formation Pale grey quartzite with cross-lamination picked-out by mud laminae. Yorke Point, Port William, East Falkland [51° 41’ South, 57° 47’ West].

LX1036. Port Stanley Formation. Pale grey quartzite containing small mudstone flakes and a scattering of detrital heavy minerals (probably rutile). Two Sisters, East Falkland [51° 41’ South, 58° 00’ West].

LX1037. Port Stanley Formation. Laminated carbonaceous siltstone interbedded with fine- grained quartz sandstone. Long Pond, Bold Point, East Falkland [51° 26’ South, 58° 27’ West].

LX1038. Port Stanley Formation. Carbonaceous silty mudstone from an interbed with quartzite. Pony’s Pass Quarry, near Stanley, East Falkland [51° 41’South, 57º 47’ West].

LX1039. Port Stanley Formation. Carbonaceous mudstone with plant remains, from an interbed with quartzite. Pony’s Pass Quarry, near Stanley, East Falkland [51° 41’ South, 57° 47’ West].


'''Lafonia Group (LX1040&nbsp;–&nbsp;LX1072)'''

LX1040. Fitzroy Tillite Formation. Laminated diamictite cut by strong, penetrative cleavage. Memorial Cove, Fitzroy, East Falkland [51° 47’ South, 58° 13’ West].

LX1041. Fitzroy Tillite Formation. Massive diamictite, cleaved. Frying Pan Quarry, East Falkland [51° 49’ South, 58° 19’ West].

LX1042. Fitzroy Tillite Formation. Massive diamictite. Frying Pan Quarry, East Falkland [51° 49’ South, 58° 19’ West].

LX1043. Shepherds Brook Member, Port Sussex Formation. Fine grained, silty sandstone. Port Sussex, East Falkland [51° 40’ South, 58° 58’ West].

LX1044. Black Rock Member, Port Sussex Formation. Black, carbonaceous mudstone. Ceritos Arroyo, East Falkland [51° 46’ South, 58° 50’ West].

LX1045. Terra Motas Member, Brenton Loch Formation. Sandstone showing grading from mud-flake conglomerate to fine grained, laminated sandstone. Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1046. Terra Motas Member, Brenton Loch Formation. Dark grey, siliceous sandstone.  Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1047. Terra Motas Member, Brenton Loch Formation. Laminated siltstone with variable sandstone interbeds. Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1048. Terra Motas Member, Brenton Loch Formation. Laminated siltstone with variable sandstone interbeds. Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1049. Terra Motas Member, Brenton Loch Formation. Laminated siltstone with variable sandstone interbeds. Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1050. Terra Motas Member, Brenton Loch Formation. Laminated siltstone and mudstone  with bioturbation. Canada Runde Quarry, Black Rock, East Falkland [51° 49’ South, 58° 41’ West].

LX1051. Saladero Member, Brenton Loch Formation. Fine to medium grained sandstone. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1052. Saladero Member, Brenton Loch Formation. Fine to medium grained sandstone. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1053. Saladero Member, Brenton Loch Formation. Fine to medium grained sandstone. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1054. Saladero Member, Brenton Loch Formation. Fine grained sandstone with wispy cross-bedding picked out by muddy laminae. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1055. Saladero Member, Brenton Loch Formation. Fine grained sandstone with wispy cross-bedding picked out by muddy laminae. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1056. Saladero Member, Brenton Loch Formation. Fine grained sandstone with wispy cross-bedding picked out by muddy laminae. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1057. Saladero Member, Brenton Loch Formation. Laminated silty mudstone. Salinas Beach, near Goose Green, East Falkland [51° 49’ South, 59° 00’ West].

LX1058. Saladero Member, Brenton Loch Formation. Sandstone with silty laminations. Walker Creek, East Falkland [51° 58’ South, 58° 47’ West].

LX1059. Saladero Member, Brenton Loch Formation. Sandstone with mudstone laminations. Walker Creek, East Falkland [51° 58’ South, 58° 47’ West].

LX1060. Saladero Member, Brenton Loch Formation. Fine grained sandstone. Miles Creek, Victoria Harbour, East Falkland [51° 57’ South, 58° 52’ West].

LX1061. Saladero Member, Brenton Loch Formation. Medium grained sandstone. Arrow Harbour, Choiseul Sound, East Falkland [51° 54’ South, 58° 57’ West].

LX1062. Bay of Harbours Formation. Medium-grained sandstone. Colorado Pass, Lafonia, East Falkland [51° 53’ South, 59° 08’ West].

LX1063. Bay of Harbours Formation. Laminated, fine- to medium-grained sandstone. Cobb’s Pass, Bodie Creek, Lafonia, East Falkland [51° 50’ South, 59° 07’ West].

LX1064. Bay of Harbours Formation. Muddy siltstone with plant fragments. Motley Point, Lafonia, East Falkland [52° 06’ South, 58° 41’ West].

LX1065. Bay of Harbours Formation. Coarse grained sandstone (interbedded with LX1066). Sound House, Lafonia, East Falkland [51° 59’ South, 59° 16’ West].

LX1066. Bay of Harbours Formation. Silty, fine grained sandstone (interbedded with LX1065). Sound House, Lafonia, East Falkland [51° 59’ South, 59° 16’ West].

LX1067. Bay of Harbours Formation. Muddy siltstone. Motley Point, Lafonia, East Falkland. [52° 06’ South, 58° 41’ West].

LX1068. Bay of Harbours Formation. Coarse-medium grained lithic sandstone. Bleaker Island, East Falkland [52° 11’ South, 58° 51’ West].

LX1069. Egg Harbour Member, Bay of Harbours Formation. Medium grained sandstone. Between Dos Lomas and New Haven, Lafonia, East Falkland [51° 46’ South, 59° 14’ West].

LX1070. Egg Harbour Member, Bay of Harbours Formation. Medium grained sandstone. New Haven [51° 45’ South, 59° 12’ West].

LX1071. Cantera Member, Brenton Loch Formation. Laminated siltstone/mudstone. Camilla Creek, East Falkland [51° 47’ South, 58° 58’ West].

LX1072. Cantera Member, Brenton Loch Formation. Laminated siltstone/mudstone. Teal Creek, Darwin Harbour, East Falkland [51° 49’ South, 58° 56’ West].
[[Category: OR/14/040 Recent contributions on Falkland Islands bedrock geology, with an inventory of representative lithostratigraphical specimens held by the British Geological Survey | 12]]