VENTS1, June 2006

   [ June 2006 / 27 images ]

Bolków: the castle and town seen from the Panorama Hotel, the site of the workshop. Bolków: the castle and town seen from the Panorama Hotel, the site of the workshop.
Carboniferous rhyodacites west of Wałbrzych, from left to right: Chełmiec laccolith, Mniszek phacolith and Stary Lesieniec lavas (with quarry). Carboniferous rhyodacites west of Wałbrzych, from left to right: Chełmiec laccolith, Mniszek phacolith and Stary Lesieniec lavas (with quarry).
Columnar joints in rhyodacite vein (or a lava?) north of Chełmiec. Columnar joints in rhyodacite vein (or a lava?) north of Chełmiec.
Participants of VENTS1 in an abandoned quarry at Mniszek Hill near Wałbrzych. Flow foliated rhyolite in the background. Participants of VENTS1 in an abandoned quarry at Mniszek Hill near Wałbrzych. Flow foliated rhyolite in the background.
The Rusinowa-Grzmiąca Belt: Carboniferous maar/diatreme belt exhumed by erosion east of Wałbrzych. The Rusinowa-Grzmiąca Belt: Carboniferous maar/diatreme belt exhumed by erosion east of Wałbrzych.
Abandoned quarry at a margin of diatreme exposes trachyandesite laccolith/cryptodome and overlying country rocks: sandstones and tuffs. Abandoned quarry at a margin of diatreme exposes trachyandesite laccolith/cryptodome and overlying country rocks: sandstones and tuffs.
Axel, Vlado, Ewa, Mariusz and Frantisek examine the top 2 m of the trachyandesite subvolcanic intrusion. Axel, Vlado, Ewa, Mariusz and Frantisek examine the top 2 m of the trachyandesite subvolcanic intrusion.
A field lecture by Chris on soft-sediment hosted maars/diatremes. A field lecture by Chris on soft-sediment hosted maars/diatremes.
Flow fold in Barbarka Hill rhyolites near Wałbrzych. Flow fold in Barbarka Hill rhyolites near Wałbrzych.
Uwe collected a nice specimen of rhyolite with xenolithic pebbles from a margin of sill at Barbarka Hill. Uwe collected a nice specimen of rhyolite with xenolithic pebbles from a margin of sill at Barbarka Hill.
On a flank of Permian shield volcano at Czadrówek near Kamienna Góra, where basaltic trachyandesite lavas, tuffs and breccias are exposed. On a flank of Permian shield volcano at Czadrówek near Kamienna Góra, where basaltic trachyandesite lavas, tuffs and breccias are exposed.
At Okrzeszyn in Góry Krucze a rhyolitic lava flow exhibits flow foliation, flow folds and post-magmatic Cu mineralization. At Okrzeszyn in Góry Krucze a rhyolitic lava flow exhibits flow foliation, flow folds and post-magmatic Cu mineralization.
Close-up of spherulitic rhyolites in the basal part of the flow. Close-up of spherulitic rhyolites in the basal part of the flow.
The VENTS group at an outcrop of Permian ignimbrite at Grzędy. The VENTS group at an outcrop of Permian ignimbrite at Grzędy.
Chris investigates ignimbrite sample in more detail. Chris investigates ignimbrite sample in more detail.
Investigation reveals altered pumice, lithics and crystals in an aphanitic reddish groundmass. Investigation reveals altered pumice, lithics and crystals in an aphanitic reddish groundmass.
Marek and Vlado over map of the Sudetes. Marek and Vlado over map of the Sudetes.
Bedded, intermediate-composition tuffs at the Rožmitál quarry. Bedded, intermediate-composition tuffs at the Rožmitál quarry.
Intermediate-composition phreatomagmatic tuff with accretionary lapilli, the Rožmitál quarry. Intermediate-composition phreatomagmatic tuff with accretionary lapilli, the Rožmitál quarry.
Meadow near the Rožmitál quarry. Meadow near the Rožmitál quarry.
Andesitic lavas and/or subvolcanic intrusions at the Rožmitál quarry. Andesitic lavas and/or subvolcanic intrusions at the Rožmitál quarry.
Permian rhyolitic ignimbrites near the Czech-Polish border between Rožmitál and Głuszyca. Permian rhyolitic ignimbrites near the Czech-Polish border between Rožmitál and Głuszyca.
Vapor phase/diagenetic nodules are prominent in the Permian 'regional' ignimbrite of the Intra-Sudetic Basin. Vapor phase/diagenetic nodules are prominent in the Permian 'regional' ignimbrite of the Intra-Sudetic Basin.
Another exposure of the Permian 'regional' ignimbrite. Another exposure of the Permian 'regional' ignimbrite.
At Lubiechowa, in the North-Sudetic Basin, basaltic andesite lavas with sedimentary and peperitic intercalations are exposed. At Lubiechowa, in the North-Sudetic Basin, basaltic andesite lavas with sedimentary and peperitic intercalations are exposed.
Organy Wielisławskie rhyolites north of Świerzawa show spectacular arrangement of columnar joints and flow foliation. Organy Wielisławskie rhyolites north of Świerzawa show spectacular arrangement of columnar joints and flow foliation.
A dive into the deeper basement, where magma was born in the C-P times: the Karkonosze granite at Góry Sokole, hosting a composite enclave/dyke. A dive into the deeper basement, where magma was born in the C-P times: the Karkonosze granite at Góry Sokole, hosting a composite enclave/dyke.