- ArchiefMG 146 - W.O. Kupsch fonds
- ReeksJ. Audio-Visual Materials
- 1257 more...
- StukWOK 10-125 - General view of mud crater. Namafjall solfatara area
- StukWOK 10-126 - Mud craters and mud cones. Namafjall solfatara area
- StukWOK 10-127 - Hot springs of Namafjall solfatara area
- StukWOK 10-128 - Steam escaping from drilled hole in Namafjall solfatara area
- StukWOK 10-129 - Drill hole with casing and pipe to gathering area, Namafjall solfatara area
- StukWOK 10-130 - Sulfur deposited by hot springs at Namafjall solfatara area
- StukWOK 10-131 - Small cone deposited by hot spring, Namafjall
- StukWOK 10-132 - Pillow lavas, hydrothermally altered, near Namafjall
- StukWOK 10-133 - Pillow lavas, hydrothermally altered, near Namafjall
- 1039 more...