Results 141 to 150 of about 8,008,633 (316)

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

open access: yesBoreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida   +5 more
wiley   +1 more source

Impact Cratering Experiment for a Course in Lunar and Planetary Geology

open access: hybrid, 1980
Eugene I. Smith   +2 more
openalex   +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

Hornblende alteration and fluid inclusions in Kärdla impact crater, Estonia: Evidence for impact‐induced hydrothermal activity [PDF]

open access: bronze, 2002
Kalle Kirsimäe   +6 more
openalex   +1 more source

Cathodoluminescence petrography and isotope geochemistry of KT impact ejecta deposited 360 km from the Chicxulub crater, at Albion Island, Belize [PDF]

open access: green, 2002
Bruce W. Fouke   +8 more
openalex   +1 more source

RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva   +10 more
wiley   +1 more source

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