Nettet24. mar. 2024 · Eocene quartz gravels Steeply dipping gold-bearing Hogburn Formation quartz gravels (white, left) faulted against middle Cretaceous Kyeburn Formation (brown, background), Kyeburn valley. On a regional scale, the gold-bearing gravels occur close to the Waipounamu Erosion Surface. NettetPRELIMINARY GEOTECHNICAL ASSESSMENT Figure 4: Geological section along main embankment. Figure 5: Geological cross sections across main embankment....
Tertiary and early Quaternary Geology of the Naseby and Kyeburn …
NettetGeoSciML compound material names. NZGS rock and mineral names. Sample Type: -- All -- hand specimen normal thin section polished thin section mineral separate powder grain mount display extra oriented hand specimen stained thin section lost unknown polished fluid inclusion slice virtual aggregated sample slab core plug polished mount coarse ... Nettet24. mar. 2024 · The Miocene gravels (Dunstan Formation) in Central Otago rest on the Miocene unconformity which is close to the Waipounamu Erosion Surface. Erosion and … magix cleaning lab windows 10
Kyeburn Mine, Ranfurly, Central Otago District, Otago Region, …
NettetThe Swinburn Oligocene marine sequence is fossiliferous but less carbonate-rich than the Waitaki sequences. The formations are thick, with matrix dominated by mica and quartz silt, contrasting with large authigenic glaucony and sandy carbonate bioclasts in the thinner equivalent strata in the Waitaki region. http://wiki.projectgorgon.com/wiki/Gribburn Nettet10Be concentrations measured in silica‐cemented Tertiary sandstones in Central Otago have yielded minimum exposure ages of up to 1400 ka, some of the oldest ever recorded outside the dry valleys of Antarctica and some arid deserts. The silica‐cemented sandstones outcrop as boulders in a region where their exposure is caused by the … magix cleaner tool