Results 41 to 50 of about 8,490 (221)
Microfossils from the lower Mesoproterozoic Kaltasy Formation, East European Platform [PDF]
, 2017 Basinal shales of the lower Mesoproterozoic Kaltasy Formation, sampled from three boreholes drilled into the southeastern East European Platform, Russia, contain abundant and moderately well preserved microfossils.
Knoll, Andrew +3 more
core +1 more source
Journal of Open Research SoftwareX-ray microcomputed tomography (X-ray µCT) allows the quantification of morphological features of microfossils in an unprecedented level of detail and completeness. To support accurate and reproducible extraction of morphological data from scan datasets,
Michael Siccha, Dave Schmidt
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT The following paper investigates ceramic production and signs of specialization in Rome and the wider region during the early first millennium bce, through an archaeometric approach using Instrumental Neutron Activation Analysis (NAA), and complementary techniques.
Mattia D'Acri +4 more
wiley +1 more source
Carbon isotopic composition of individual Precambrian microfossils
, 2000 Ion microprobe measurements of carbon isotope ratios were made in 30 specimens representing six fossil genera of microorganisms petrified in stromatolitic chert from the similar to 850 Ma Bitter Springs Formation, Australia, and the similar to 2100 Ma ...
House, Christopher H. +5 more
core +1 more source
New scientific direction of the bacterial paleontology in Mongolia
Mongolian Geoscientist, 2019 We review the initial development of Bacterial Paleontology in Mongolia and present some electron microscopic images of fossil bacteria in different stages of preservation in sedimentary rocks.
Dorj Dorjnamjaa +2 more
doaj +1 more source
Proterozoic microfossils from the sedimentary rocks of the Lappajärvi impact crater [PDF]
Bulletin of the Geological Society of Finland, 1990 The Proterozoic microbiota of acritarchs is reported from the siltstone deposit of Lappajärvi. Diversity is low, with sphaeromorphs dominating the taxa, which also includes some coenobial and ovoidal specimens and a fragment of filament.
A. Uutela
doaj +1 more source
Boreas, EarlyView.Glacially overdeepened valleys in the northern Alpine Foreland preserve Middle to Late Pleistocene sedimentary sequences that may serve as valuable archives for reconstructing past environmental changes in response to shifts in climate. This study presents a multidisciplinary analysis of two sediment cores from the overdeepened Wehntal Valley at ...
Johannes M. Miocic +8 more
wiley +1 more source
Phytolith microfossils categorized according to ecozone-type.
, 2016 Phytolith microfossils categorized according to ecozone-type.
Danielle A. Macdonald (3228357) +3 more
core +1 more source
Plant Microfossils of an Iowa Coal Deposit [PDF]
, 1937 Much work has been done with the microfossils of Quaternary peat and silt deposits in Europe and North America, but comparatively little has been done with plant microfossils in older carbonaceous deposits, and, as far as the authors are aware, no ...
Wilson, L. R,, Brokaw, A. L.
core +1 more source
Boreas, EarlyView.Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein +19 more
wiley +1 more source