Vein generation

Vein type

Subordinate vein fill

Country rock

Structure

Fabric

Inclusions

F1

Dolomicrite

Microcrystalline quartz, rock fragments

(Siliceous) dolostone

Bedding-confined, preferentially parallel and normal to bedding, breccias

Layered parallel to fracture walls, sedimentary geopetal layering

Finely dispersed organic matter

F2

Quartz

Microcrystalline quartz, rock fragments

(Dolomitic) porcellanite

Bedding-confined, random orientation, breccias

Bladed; microcrystalline quartz geopetal

Dolomite

F3

Baroque dolomite

Dolomicrite, rock fragements

(Siliceous) dolostone

Bedding-confined to irregular breccia bodies, random orientation

Bladed; dolomicrite geopetal

—

F4

Calcite

Calcmicrite, mega-quartz, calcedony, barite, rock fragments

Siliceous clay mudstone, porcellanite, (siliceous) dolostone

Adjacent to meso-scale faults, perpendicular to bedding, strike fault-controlled, ‘spalling’; extensive cementation along fault planes

Bladed; botryoids; inclusion-rich/-poor bands

Aqueous, bitumen