Results 71 to 80 of about 8,490 (221)

Depositional History of the Namibian Mud Belt Reveals Late Holocene Weakening of the Benguela Coastal Current

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract We investigate late Holocene changes in the northern Benguela Upwelling System using a multi‐proxy approach on shallow shelf deposits from the Namibian mud belt. Three sediment cores characterized by organic carbon‐rich, anoxic, and partly gas‐bearing sediments were retrieved along a sampling transect at 23°S in August 2019.
Michael Kossack   +5 more
wiley   +1 more source

Radiolarian micropalaeontology: collecting radiolaria

open access: yes, 2010
Professor Simon Haslett discusses collecting radiolarian microfossils. Radiolaria are marine single-celled organisms that possess a silica shell and are preserved in the fossil record. They can be collected from sediment accumulating on the sea-floor and
Haslett, Prof. Simon K.   +1 more
core  

Pre-Cambrian to Palaeozoic Palaeopalynology and Palaeobotany

open access: yesCarnets de Géologie, 2005
A set of 14 abstracts and short papers (extended abstracts) of presentations given at a meeting organized by the NFSR Working Group, "Micropaléontologie végétale et Palynologie (MVP)", held on May 11, 2005 at the University of Liège, Belgium.
Steemans Philippe, Javaux Emmanuelle
doaj  

Boron Isotope Evidence for Reduced Ventilation of the Deep Arctic Ocean During the Last Glacial Period

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract Understanding the ventilation of the deep ocean, where most ocean carbon is stored, is essential to understanding how changes to ocean carbon budgets contribute to climate change. In the Arctic Ocean, shifts in ice cover, stratification and temperature are likely to impact carbon sequestration in the ocean interior.
Jesse R. Farmer   +3 more
wiley   +1 more source

Ceramic micropalaeontology: the analysis of microfossils in ancient ceramics [PDF]

open access: yes, 2007
Microfossils can be a common component of ancient ceramic artefacts. Their analysis in this unusual context is a little-known, yet promising cross-disciplinary application of micropalaeontology.
Quinn, Patrick   +3 more
core   +1 more source

The Temporal Imperative: Palaeo‐Proxies and Nature‐Based Solutions for Resilient Natural Inland Wetland Conservation and Management in Southeast Asia—A Systematic Review

open access: yesEcological Management &Restoration, Volume 27, Issue 3, September 2026.
ABSTRACT Natural inland wetlands in Southeast Asia provide key biodiversity, hydrological, carbon‐storage and livelihood functions, but are increasingly affected by land‐use change, fire, hydrological modification and climate change and variability.
Thunyapat Sattraburut   +2 more
wiley   +1 more source

Machine Learning Classification of Fossilized Pectinodon bakkeri Teeth Images: Insights into Troodontid Theropod Dinosaur Morphology

open access: yesMachine Learning and Knowledge Extraction
Although the manual classification of microfossils is possible, it can become burdensome. Machine learning offers an alternative that allows for automatic classification.
Jacob Bahn   +2 more
doaj   +1 more source

Molecular preservation of 1.88 Ga Gunflint organic microfossils as a function of temperature and mineralogy [PDF]

open access: yes, 2016
International audienceThe significant degradation that fossilized biomolecules may experience during burial makes it challenging to assess the biogenicity of organic microstructures in ancient rocks.
Alleon, Julien   +24 more
core   +1 more source

(Table T1) Oxygen and carbon stable isotopes of calcareous microfossils from ODP Holes 189-1170A and 189-1172A

open access: yes, 2004
(Table T1) Oxygen and carbon stable isotopes of calcareous microfossils from ODP Holes 189-1170A and 189 ...
Ennyu, Atsuhito   +3 more
core   +1 more source

Biosignature Preservation in Stromatolites From the Carri Laufquen Lakes System, Patagonia: Implications for Martian Palaeolacustrine Environments

open access: yesGeobiology, Volume 24, Issue 5, September/October 2026.
ABSTRACT The Carri Laufquen Lakes System is a highly alkaline, basalt‐hosted lacustrine environment in northern Patagonia, Argentina. Diverse morphologies of Late Pleistocene sub‐fossil stromatolites occur along the lakeshores. Using detailed optical and electron microscopy, spectroscopy and organic geochemical analyses, this study shows that ...
Victor Amir Cardoso Dorneles   +8 more
wiley   +1 more source

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