Results 31 to 40 of about 133 (115)
Archaeology in Oceania, Volume 60, Issue 3, Page 220-233, October 2025.ABSTRACT Raw materials are used to characterise the early settlement of Aotearoa Te Wai Pounamu New Zealand by Māori. Current models suggest change in raw material use over time occurred in response to changing social organisation and reduced resource availability. However, few studies have examined spatial variation in raw material use.
Rebecca Phillipps +3 more
wiley +1 more source
Hydrated Silica in Oxia Planum, Mars
Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.Abstract Hydrated silica (SiO2·nH2O; opal) is important for understanding the geological and aqueous history and habitability of Mars, owing to its genesis in a wide range of aqueous environments and its high biosignature preservation potential relative to other hydrated minerals.
Joseph D. McNeil +4 more
wiley +1 more source
Earth Surface Processes and Landforms, Volume 50, Issue 10, August 2025.Cosmogenic 26Al/10Be ratios are used to quantify the spatial–temporal processes of landscape change in the Pilbara since the Plio‐Pleistocene. We compare long‐term catchment denudation rates from bedrock and river sediments and explore the potential mechanisms underlying their complex exposure history through a source‐to‐sink approach.
Alissa Flatley +4 more
wiley +1 more source
Global Biogeochemical Cycles, Volume 39, Issue 8, August 2025.Abstract We report stable silicon isotope ratio (δ30Si) of over 80 groundwater samples collected along the Indian coast, spanning a wide range of aquifer lithologies (alluvial, basalt, metamorphic, laterite and limestone), climate (semi‐arid to tropical wet) and land use settings.
Sarath Pullyottum Kavil +7 more
wiley +1 more source
American Journal of Biological Anthropology, Volume 187, Issue 3, July 2025.ABSTRACT Objectives This study provides the description and comparative morphometric analysis of a non‐hallucial distal pedal phalanx (PP 654270) excavated from near the base of the LBSR Stratigraphic Aggregate in the Pinnacle Point PP5‐6N rock‐shelter.
Adrián Pablos +5 more
wiley +1 more source
Multi‐Century Grindstone Quarrying at Brumby Yard, Queensland
Archaeology in Oceania, Volume 60, Issue 2, Page 176-186, July 2025.ABSTRACT The timing and duration of prehistoric quarrying is poorly understood within Australia, with limited ages available for quarries owing to the difficulties in dating these rock‐sediment constructions. We report the first multi‐sample, optically stimulated luminescence ages from quarry pits in Brumby Yard, an Aboriginal grindstone quarry ...
Kieran McGee +4 more
wiley +1 more source
New Zealand Journal of Geology and Geophysics, Volume 68, Issue 2, Page 245-259, June 2025.ABSTRACT The St Bathans paleovalley developed as a major southwest‐draining fluvial system during early Miocene rejuvenation of the Central Otago landscape. Rounded quartz pebbles and detrital gold were recycled from Eocene quartz pebble conglomerates into the headwaters of this Miocene paleodrainage system on the northern margin of the Otago Schist ...
Marshall Palmer, Dave Craw
wiley +1 more source
Eocene animal trace fossils in 1.7-billion-year-old metaquartzites. [PDF]
Proc Natl Acad Sci U S A, 2021 Bengtson S +5 more
europepmc +1 more source
Silcretes in the Cobar area, New South Wales
Journal and proceedings of the Royal Society of New South Wales, 1983 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Glen, R A, Hutton, J T
openaire +2 more sources
Portable, non-destructive colorimetry and visible reflectance spectroscopy paired with machine learning can classify experimentally heat-treated silcrete from three South African sources. [PDF]
PLoS One, 2022 Murray JK, Oestmo S, Zipkin AM.
europepmc +1 more source