Results 1 to 10 of about 162,949 (204)

Revision of the fossil land tortoises (Testudines: Testudinidae) from Hispaniola with the description of a new species

open access: yesNovitates Caribaea, 2022
The genus of land tortoises Chelonoidis had a wide distribution across the Caribbean and Bahamian Archipelago during the Late Pleistocene and Holocene. Two extinct species of this genus, C. marcanoi Turvey et al., 2017 and C.
Lázaro W Viñola-López, Juan N Almonte
doaj   +1 more source

Detection and Characterisation of Eemian Marine Tephra Layers within the Sapropel S5 Sediments of the Aegean and Levantine Seas

open access: yesQuaternary, 2020
The Eemian was the last interglacial period (~130 to 115 ka BP) to precede the current interglacial. In Eastern Mediterranean marine sediments, it is marked by a well-developed and organic-rich “sapropel” layer (S5), which is thought to ...
Christopher Satow   +6 more
doaj   +1 more source

Evolution and changes of the ancient Luanhe fluvial fan since the Quaternary in Tangshan, Hebei Province

open access: yesDizhi lixue xuebao, 2023
The study of the ancient Luanhe alluvial fan has focused more on the Holocene, and no systematic study has been conducted on its Pleistocene evolution and variation.
CHEN Hongqiang   +6 more
doaj   +1 more source

Late Quaternary fossil vertebrates of the Broken River karst area, northern Queensland, Australia. In Papers in Honour of Ken Aplin, ed. Julien Louys, Sue O’Connor, and Kristofer M. Helgen

open access: yesRecords of the Australian Museum, 2020
Two new fossil deposits from caves of the Broken River area, northeast Queensland, provide the first regional records of vertebrate species turnover and extinction through the late Quaternary.
Gilbert J. Price   +7 more
doaj   +1 more source

The Megafauna3D Educational Environment: Harnessing the Combination of New and Traditional Technologies to Improve Geoscience Education and Outreach

open access: yesGeosciences
The Megafauna3D project integrates advanced 3D scanning technologies and paleontological research to bring the extinct megafauna of Uruguay to formal and informal educational settings.
Luciano Varela   +4 more
doaj   +1 more source

Carbinatitic magmatism evidence in the Quaternary volcanic rocks in the west of Nowbaran, NW of Iran [PDF]

open access: yesپترولوژی, 2019
The fourteen numbers of ultrabasic volcanoes eruption in the west of Nowbaran are located in the west margin of Iranian central zone near to the Sanandaj-Sirjan zone.
Bahman Rahimzadeh   +3 more
doaj   +1 more source

Holocene and postglacial lake sedimentation in the central part of the Karelian Isthmus as an example of Lake Krasnoye in the Leningrad region [PDF]

open access: yesGlasnik Srpskog Geografskog Društva
This paper deals with the issue of changing the conditions of the geographical environment in the postglacial and Holocene in the central part of the Karelian Isthmus.
Komazec Sergej
doaj   +1 more source

Oxide Semiconductor Memristor‐Based Optoelectronic Synaptic Devices With Quaternary Memory Storage

open access: yesAdvanced Electronic Materials
A pioneering integration of oxide semiconductor memristors with optoelectronic features is presented, surpassing binary limitations to realize multi‐valued synaptic operations.
Jeong‐Hyeon Kim   +8 more
doaj   +1 more source

The 100‐ka and rapid sea level changes recorded by prograding shelf sand bodies in the Gulf of Lions (western Mediterranean Sea)

open access: yesGeochemistry, Geophysics, Geosystems, 2008
Thick forced regressive units on the wide continental shelf of the Gulf of Lions (western Mediterranean) recorded the composite effect of sea level changes during the Quaternary.
M. A. Bassetti   +9 more
doaj   +1 more source

Microstratigraphic Records as Tools for the Detection of Climatic Changes in Tana di Badalucco Cave (Liguria, NW Italy)

open access: yesGeosciences, 2019
Tana di Badalucco cave is located in Imperia (Liguria, Italy), not far from the French border. This site is scarcely known and it has never been studied accurately, even though different archaeological excavations have returned really important elements,
Eleonora Sessa   +6 more
doaj   +1 more source

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