Structural Geology Photos – Folds

 

Photo-glossary to complement EES 356

 Tectonic Structures – Macro-Scale Folds

Mt Kidd, Alberta
recumbent fold, Swiss Alps
Fold pair, Canadian Rockies
Folded granite – fold is defined by mafic dikes, Cordillera Darwin, Chile
Folded carbonates, Gobi Altai, Mongolia
Folded clastic sediments, Dariv Basin, western Mongolia
overturned syncline at Sisikon, Switzerland
Mt Rundle – classic dip slope, Alberta
Anticline fold limb, Israel
small anticline in Dzereg Tertiary basin fill, NW Mongolia
Tilted strata and folds in carbonate sequences, Kananaskis region of Canadian Rockies, Alberta
close-up of tilted carbonate sequence with small folds and thrust faults, Kananaskis region, Alberta
Fold sequence with thrust fault, Langshan, China (photo courtesy of Zhang Jin)
Folds and thrust fault, Swiss Jura
Folds in Monte Martial, Ushuaia, Argentina
Open folds in quartzite, Sierra do Espinhaco, Brazil
Folded Triassic strata, Helan Shan

Folded Triassic strata, Helan Shan

 

Asymmetric folds, Helan Shan

Asymmetric folds, Helan Shan

 

Fold core detail, Helan Shan

Fold core detail, Helan Shan

 

W-vergent fold, Helan Shan

W-vergent fold, Helan Shan

 

Overturned fold, Helan Shan, China

Overturned fold, Helan Shan, China

 

Cylindrical fold, Helan Shan

Cylindrical fold, Helan Shan

 

syncline close-up, Helan Shan

syncline close-up, Helan Shan

 

Anticline, Helan Shan

Anticline, Helan Shan

 

 

overturned fold, Helan Shan, China

 Tectonic Structures – Macro-Scale Folds

folded calc-silicate rocks, Granite Wash Mts, Arizona

folded dike, Cordillera Darwin, Chile

boudinaged folds, western gneiss region, Norway

disharmonic folds

folded marble, eastern Brazil

fold hinge detail

folds in marnble quarry, eastern Brazil

sheath fold eye, marble quarry, eastern Brazil

intrafolial folds

folded basement, Cordillera Darwin, Chile

ptygmatic folds

curvilinear fold hinges, Anglesey, Wales

overturned, strongly vergent antiform, southern Chile

broken folds in melange, Chile

similar folds

folded flysch, Nemegt Range, Mongolia

folded phyllite, Rhoscolyn, Wales

folded pelites and quartz veins, Rhoscolyn, Wales

folded S1 cleavage, Rhoscolyn, Wales

disharmonic folds, Anglesey, Wales

folds and multiple generations of quartz veins, Rhoscolyn, Wales