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Glass fibre resin casts of fossils
1960(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Rixon, A E, Meade, M J
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The overview of analytical methods for studying of fossil natural resins
Critical Reviews in Analytical Chemistry, 2023The review presents methods that are used frequently for multi-analytical study of fossil resins. The preliminary characterization relies on physical methods such as microhardness, density and fluorescence in UV light measurements. The spectroscopic methods: infrared spectroscopy, Raman spectroscopy, fluorescence spectroscopy are also presented in the ...
Lucyna Natkaniec-Nowak +4 more
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Deuterium exchangeability in modern and fossil plant resins
Geochimica et Cosmochimica Acta, 2018Abstract Deuterium exchange experiments on modern and fossil plant resins (amber) were conducted to assess to what extent diagenetic alteration can overprint the stable hydrogen (δ2H) and carbon (δ13C) isotopic composition of these materials. Pairs of resins and amber fragments were placed together with deuterated water in sealed quartz-glass tubes ...
Gabriela González Arismendi +4 more
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Amber, Resinite, and Fossil Resins
1996Biology of Amber-Producing Trees: Focus on Case Studies of Hymenaea and Agathis Stable Isotope Composition of Amber Resin-Derived Hydrocarbons in Fresh and Fossil Dammar Resins and Miocene Rocks and Oils in the Mahakam Delta, Indonesia Pyrolytic and Spectroscopic Studies of the Diagenetic Alteration of Resinites Maturation of Class Ib (Polylabdanoid ...
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Recent and fossil resins from New Zealand and Australia
Geoarchaeology, 1993AbstractThe carbon‐13 nuclear magnetic resonance spectra of fossil resins from New Zealand and Australia have been compared with those of modern and semifossilized materials. The great majority of the fossilized samples have strong spectral similarities to modernAgathisresins and to North American fossil resins, which have been attributed to Agathis ...
Joseph B. Lambert +3 more
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Kauri Resins—Modern and Fossil
1969The genus Agathis, a group of conifers found in the land areas between New Zealand and Malaysia, has several conspicuous resin-forming systems. Thus, the New Zealand species Agathis australis (Salisbury) produces resins, often in very large amount, in the heartwood, in resin canals in the bark, in resin canals in the leaves, in the leaf surface layers,
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Mineralogy of fossil resins in Northern Eurasia
Geology of Ore Deposits, 2007The investigation is focused on identification and origin of fossil resins from the Cretaceous, Tertiary, and Quaternary sediments of Northern Eurasia on the basis of detailed study of their physical and chemical characteristics: morphology; size; mass; density; optical, mechanical, and thermal properties; chemical composition; etc.
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Fossil insecta from Cainozoic resin at Allendale, Victoria
1957(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Conceptual Frameworks for Geographic-Botanical Affinities of Fossil Resins
Canadian Journal of Earth Sciences, 1974Solid-state analytical techniques have been applied to natural resins to establish paleo-geographic-botanical frameworks. Infrared spectroscopy, X-ray diffraction, and differential thermal analysis were the techniques utilized. Fossilized resins (ambers) and recent to modern natural resins (gums and copals) from 47 world-wide localities were used in ...
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Calyptrate flies in fossil resin from Mexico and Tanzania
PalaeoentomologyFossil Calyptratae flies are exclusively found in the Cenozoic. Calyptrates arose around the K-T boundary and rapidly diversified in the early Tertiary. Only a few species of fossil Calyptratae are known from fossil resins such as Baltic amber, Dominican amber, and East African copal or Defaunation resin.
LUCAS R. P. GOMES +1 more
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