Results 131 to 140 of about 151,236 (376)

Multiple indicators record human adaptations to climatic change during the Middle Holocene at the Wanbei site in the middle and lower Huai River valley, China

open access: yesBoreas, EarlyView.
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian   +9 more
wiley   +1 more source

Petrología cerámica comparativa y análisis composicional de las pinturas por MEB-EDS de estilo Aguada Portezuelo (ca. 600-900 DC) en el valle de Catamarca (Noroeste Argentino)

open access: yesEstudios Atacameños
La cerámica de estilo Aguada Portezuelo del Noroeste Argentino posee un amplio repertorio de técnicas de acabado empleadas principalmente en los tratamientos de superficie y decoración.
Guillermo A. De La Fuente   +3 more
doaj   +1 more source

Workshop on the Early Earth: The Interval from Accretion to the Older Archean [PDF]

open access: yes
Presentation abstracts are compiled which address various issues in Earth developmental processes in the first one hundred million years. The session topics included: accretion of the Earth (processes accompanying immediately following the accretion ...
Ashwal, L. D., Burke, K.
core   +1 more source

Comments on ‘Late Middle Pleistocene Wolstonian Stage (MIS 6) glaciation in lowland Britain and its North Sea regional equivalents – a review’

open access: yesBoreas, EarlyView.
Divergent views debated over the past 20 years on the Wolstonian depositional record of Fenland and the Peterborough area have centred on whether there is evidence of a single (middle or late) glaciation or of both a middle and a late glaciation. A recent review promoted a single late Wolstonian glaciation, despite there being incontrovertible evidence
Harry E. Langford
wiley   +1 more source

A 3200‐year weathering record of the Mekong River basin by sediments from the South China Sea

open access: yesBoreas, EarlyView.
The Mekong River is a mega‐river in East and Southeast Asia, and precipitation in its watershed influences more than 300 million people. However, the controlling factor in precipitation and weathering in the basin remains controversial. Here we present a high‐resolution record of weathering of the Mekong River basin over the past 3200 years by ...
Yujie Cheng   +3 more
wiley   +1 more source

Workshop on Geology of the Apollo 17 Landing Site [PDF]

open access: yes
The topics covered include the following: petrology, lithology, lunar rocks, lunar soil, geochemistry, lunar geology, lunar resources, oxygen production, ilmenite, volcanism, highlands, lunar maria, massifs, impact melts, breccias, lunar crust, Taurus ...
Ryder, G., Schmitt, H. H., Spudis, P. D.
core   +1 more source

Automated X‐ray computed tomography‐based analysis of clast fabric in drill‐cores of glacial diamicts using deep learning models

open access: yesBoreas, EarlyView.
Clast‐fabric analysis is a widely used method for investigating depositional and deformation processes in glacial sediments. However, traditional field‐based approaches lack standardization, are time consuming and introduce sampling bias. This study aimed to develop a novel approach to automate clast‐fabric analysis using machine learning‐based image ...
Bennet Schuster   +7 more
wiley   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

open access: yesBoreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells   +4 more
wiley   +1 more source

Estimation and uncertainty quantification of magma interaction times using statistical emulation

open access: yesVolcanica
The evolution of volcanic plumbing systems, which controls the style and size of eruptions, is largely determined by processes at depths that are not observable.
Luca Insolia   +4 more
doaj   +1 more source

Morphology and distribution of lakes under the Laurentide Ice Sheet: implications for ice flow dynamics

open access: yesBoreas, EarlyView.
This study examines the distribution and morphology of lakes under the Laurentide Ice Sheet (LIS) to investigate relationships with ice flow velocity, bedrock and basal thermal regime. Palaeo‐ice streams and lobes were important components of the LIS, and properties of lakes in those regions are quantified at high resolution.
Sarah M. Principato, Carissa M. Mobley
wiley   +1 more source

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