Results 21 to 30 of about 537 (93)
PLoS ONE, 2016 The Hellefjord Schist, a volcaniclastic psammite-pelite formation in the Caledonides of Arctic Norway contains discoidal impressions and apparent tube casts that share morphological and taphonomic similarities to Neoproterozoic stem-holdfast forms.
Christopher L Kirkland +3 more
doaj +1 more source
Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: Zircon geochronology from the Kangaatsiaq–Qasigiannguit region, the northern part of the 1.9–1.8 Ga Nagssugtoqidian orogen, West Greenland [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2006 The Kangaatsiaq–Qasigiannguit region in the northern part of the Palaeoproterozoic Nagssugtoqidian orogen of West Greenland consists of poly-deformed orthogneisses and minor occurrences of interleaved, discontinuous supracrustal belts. Laser ablation ICP-
Conelly, James N., Thrane, Kristine
doaj
Swiss Journal of Geosciences, 2020 Microscale dating of distinct domains in minerals that contain relics of multiple metamorphic events is a key tool to characterize the polyphase evolution of complex metamorphic terranes. Zircon and allanite from five metasediments and five metaintrusive
Alice Vho +3 more
doaj +1 more source
The Depositional Record, Volume 12, Issue 4, September 2026.Middle Triassic turbidites in the Youjiang Basin were chiefly derived from a Late Palaeozoic continental arc along the southeastern South China Block, as revealed by detrital zircon U–Pb geochronology and tourmaline geochemistry, supporting a tectonic model driven by Paleo‐Pacific subduction rather than Paleo‐Tethyan closure.
Yumei Wei, Lanqiu Meng, Yu Zhang
wiley +1 more source
(Table 1) Isotopic composition of noble gases from metasediments
, 2009 (Table 1) Isotopic composition of noble gases from ...
Altherr, Rainer +5 more
core +1 more source
The Depositional Record, Volume 12, Issue 4, September 2026.These findings confirm that the Campanian‐aged Bozbent Member turbiditic sequence in the Eastern Pontides was deposited in an extensional fore‐arc basin and therefore exhibits the petrographic and geochemical characteristics of passive margin sandstones.
Çiğdem Saydam Eker +6 more
wiley +1 more source
Understanding metallogeny around Loch Tay, Scotland: insights from isotope geochemistry and petrographic studies [PDF]
The southern margin of Loch Tay, which encompasses a 100 km2 portion of the Scottish Grampians, hosts several polymetallic veins that consistently trend 120-140 ° and were initiated contemporaneously during the Caledonian Orogeny.
Webb, Shane
core +4 more sources
Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner +6 more
wiley +1 more source
The potential susceptibility of urban hardrock aquifers to hydraulic and contaminant stresses: The case of Shah Alam, Malaysia [PDF]
, 2017 Urban groundwater needs proper management since it is potentially susceptible to both hydraulic and chemical stresses. To manage an aquifer well, an understanding is needed of how the aquifer works.
Roslan, Norsyafina
core +6 more sources
Beach Gold and Heavy Mineral Concentrates on Tiwai Spit Gravel Strand Plain, Southland, New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.The Holocene Tiwai Spit on Foveaux Strait is a 12 km by 2 km gravel‐dominated strand plain, ∼10 m above present sea level. Gravel clasts are dominated by well‐rounded quartz cobbles, pebbles and granules derived from Otago Schist 200 km to the north in evolving river drainage systems during late Cenozoic.
Marshall Palmer, Dave Craw
wiley +1 more source