Results 91 to 100 of about 8,490 (221)

Ecdysozoan-like sclerites among Ediacaran microfossils

open access: yes, 2015
We report the occurrence of organically preserved microfossils from the subsurface Ediacaran strata overlying the East European Platform in Poland, in the form of sclerites and cuticle fragments of larger organisms.
GRAHAM E. BUDD   +5 more
core   +1 more source

Considerations for the preparation of peat samples for palynology, and for the counting of pollen and non-pollen palynomorphs [PDF]

open access: yesMires and Peat, 2011
Peat deposits are valuable archives for studying palaeoclimate, the history of local and regional vegetation, and human impact. The most widely applied laboratory analytical technique has been palynology (pollen analysis), which is often limited to the ...
F.M. Chambers   +2 more
doaj  

The palynology and stratigraphy of the Cambrian Nolichucky Shale and associated formations at Thorn Hill, Tennessee, USA [PDF]

open access: yes, 2012
A detailed palynological and stratigraphic study was undertaken on the Cambrian Nolichucky Shale, Maynardville Limestone and Copper Ridge Dolomite (Conasauga Group), as exposed at Thorn Hill, northeastern Tennessee, USA.
Pedder, Brian E
core  

Estudio de microfósiles de residuos adheridos en pipas cerámicas del sitio Villa JMC-1 Labranza, Región de la Araucanía Microfossil study of ceramic smoking pipe residues, Villa JMC-1 Labranza site, Region of the Araucania, Chile

open access: yesMagallania, 2012
Se aplica el estudio de microfósiles en dos pipas del sitio Villa JMC-1, definido como un contexto funerario del Complejo Pitrén, con el fin de reconocer qué plantas fueron utilizadas en la acción de fumar.
LUCIANA D QUIROZ   +4 more
doaj  

A microstructural investigation of Osaka Bay clay: the impact of microfossils on its mechanical behaviour

open access: yes, 1999
A recent microstructural investigation of Osaka Bay clay sediments has revealed the presence of abundant microfossils, particularly in the marine layers, which appear to influence directly the microstructural framework of the sediments and eventually ...
Jacques Locat, Hiroyuki Tanaka
core   +1 more source

Main changes in microfossil communities throughout the Upper Proterozoic of Russia

open access: yesCarnets de Géologie, 2005
More than 50 years of study have resulted in the description of hundreds of taxa of Precambrian microfossils from the different regions of Russia.
Golubkova Elena, Raevskaya Elena
doaj  

Using Microfossils in Petroleum Exploration

open access: yes
This overview of how microfossils are used in the exploration for oil uses both drawings and photomicrographs of microfossils to illustrate the types of fossils that are employed in the search for oil.
Brian O'Neill
core  

Evidence of Microfossils in Carbonaceous Chondrites [PDF]

open access: yes, 1998
Investigations have been carried out on freshly broken, internal surfaces of the Murchison, Efremovka and Orgueil carbonaceous chondrites using Scanning Electron Microscopes (SEM) in Russia and the Environmental Scanning Electron Microscope (ESEM) in the
Gorlenko, V. M.   +3 more
core  

Self-Assembled Silica-Carbonate Structures and Detection of Ancient Microfossils

open access: yes, 2003
4 pages.-- PMID: 14615534 [PubMed].We have synthesized inorganic micron-sized filaments, whose microstucture consists of silica-coated nanometer-sized carbonate crystals, arranged with strong orientational order. They exhibit noncrystallographic, curved,
Garcia-Ruiz, J.M.   +19 more
core   +1 more source

Photogrammetry method for 3D modelling of microfossils

open access: yes, 2019
Ješkins J. 2019. Fotogrammetrijas metode mikrofosīliju 3D modeļu izveidei. Maģistra darbs. Pētījuma mērķis ir izstrādāt mikrofosīliju 3D rekonstrukcijas metodi, izmantojot fotogrammetrijas principu.
Ješkins, Jurijs
core  

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