Results 21 to 30 of about 429 (105)

AMBER IDENTIFICATION BY FOURIER TRANSFORM–RAMAN SPECTROSCOPY [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research.We present a solution to the problem of amber (succinite) identification as an example of natural polymer material of organic origin. The solution is based on the obtained Raman spectra. The proposed method makes it possible to obtain
Iana I. Verkhovskaia, Victor T. Prokopenko   +1 more
doaj   +1 more source

Początki naukowych badań nad bursztynem w Gdańsku i kolekcja Jacoba Theodora Kleina (1685–1759)

Artium Quaestiones, 2023
The article deals with the collection of Jacob Theodor Klein and the beginnings of scientific interest in amber in early modern Gdańsk. The text is intended to show the importance of this forgotten collection and the ongoing research into succinite ...
Anna Sobecka
doaj   +1 more source

Differentiation between copal and amber by their structure and thermal behaviour [PDF]

, 2023
The relationships between the polymerization related to structure and the composition of different types of natural resins were determined. Analyses were carried out by Fourier transform infrared spectroscopy (FTIR), differential thermal analysis ...
Alfonso Abella, María Pura, García-Vallès, Maite, Mariano, Alessandra di, Martinez, Salvador, Noguès, Joaquim   +4 more
core   +3 more sources

Baltic amber inspection: micro-macro-structural and luminescent analysis [PDF]

E3S Web of Conferences, 2019
The solution of the problem of amber (succinite) flaw detection by microscopic analysis and luminescent analysis of amber macrostructure is proposed. The proposed method allows to obtain a rapid analysis of the defective state of the material structure ...
Verkhovskaia Iana
doaj   +1 more source

Transition of plant resins from the biosphere to the lithosphere

Geo&Bio, 2020
In the article the authors consider in detail the process of transition of plant resins from the biosphere to the lithosphere, characterize the conditions and paleogeographic situation of such transition, the formation of deposits of resin minerals and ...
Viktor M. Matsui, Uliana Z. Naumenko
doaj   +1 more source

The last forests on Antarctica: Reconstructing flora and temperature from the Neogene Sirius Group, Transantarctic Mountains [PDF]

, 2018
Fossil-bearing deposits in the Transantarctic Mountains, Antarctica indicate that, despite the cold nature of the continent’s climate, a tundra ecosystem grew during periods of ice sheet retreat in the mid to late Neogene (17–2.5 Ma), 480 km from the ...
Ackert, Ashworth, Ashworth, Ashworth, Askin, Askin, Baas, Barrett, Bechtel, Beerling, Bendle, Biellmann, Biellmann, Bowman, Burckle, Bush, Caldicott, Carlquist, Christopher H. Vane, Cline, Cranwell, Cranwell, Dettmann, Diefendorf, Diefendorf, Diefendorf, Diefendorf, Domínguez, Eberle, Eglinton, Ficken, Ficken, Ficken, Fiona L. Gill, Fleming, Francis, Giri, Han, Hautevelle, Hemsley, Hill, Hill, Huang, James B. Riding, Jane E. Francis, Karrer, Kemp, Kolattukudy, Lawver, Lewis, Lewis, Lopes dos Santos, Marchand-Geneste, Mercer, Männistö, Nakamura, Nierop, Nott, Otto, Otto, Otto, Otto, Pancost, Peterse, Peterse, Pollard, Prebble, Pross, Raine, Raquel A. Lopes dos Santos, Retallack, Rhian L. Rees-Owen, Robert J. Newton, Ruza F. Ivanović, Shaver, Simoneit, Sinninghe Damsté, Stroeven, Stránský, Tavendale, Tavendale, Trendel, Volkman, Warny, Webb, Webb, Webb, Weijers, Weijers, Wilmesmeier, Yamamoto, Zachos   +91 more
core   +3 more sources

Re-examining the rare and the lost : a review of fossil Tortricidae (Lepidoptera) [PDF]

, 2018
We re-evaluate eleven fossils that have previously been assigned to the family Tortricidae, describe one additional fossil, and assess whether observable morphological features warrant confident assignment of these specimens to this family. We provide an
Baixeras, Joaquin, Brown, John W., Heikkilä, Maria, Kozlov, Mikhail V., Mey, Wolfram   +4 more
core   +1 more source

Production and preservation of resins – past and present

Biological Reviews, Volume 93, Issue 3, Page 1684-1714, August 2018., 2018
ABSTRACT Amber is fossilised plant resin. It can be used to provide insights into the terrestrial conditions at the time the original resin was exuded. Amber research thus can inform many aspects of palaeontology, from the recovery and description of enclosed fossil organisms (biological inclusions) to attempts at reconstruction of past climates and ...
Leyla J. Seyfullah, Christina Beimforde, Jacopo Dal Corso, Vincent Perrichot, Jouko Rikkinen, Alexander R. Schmidt   +5 more
wiley   +1 more source

Soviet Lithuanians, Amber and the "New Balts": historical narratives of national and regional identities in Lithuanian museums, 1940-2009 [PDF]

, 2010
In the twentieth century Lithuania emerged from the crumbling Russian Empire as a post-colonial nationalising state. Its short-lived independence (1918–1940) fea-tured attempts to assemble the material foundations for an imagined community of Lithuanians,
Anderson, Balkelis, BaltrÅ«nas, Bennett, Bennett, Berger, Billig, Brubaker, Budryte, Bumblauskas, Butler, Duncan, Egle Rindzevičiute, Fitzpatrick, Gardanov, Gerner, Gudynas, Hiden, Hobsbawm, Jakelaitis, Katinas, Kirby, Kirby, Knell, Lehti, Lightbrow, MacKenzie, Michelbertas, Misiunas, Motieka, Nikžentaitis, Novosel’tsev, Nėris, Pearce, Rindzeviciute, Rindzeviciute, Sandomirskaja, Smith, Snyder, Suny, Vardys, Weiner, White, Å imėnas, Å vedas, Å vedas   +45 more
core   +2 more sources

Enantiomeric Composition and Prevalence of Some Bicyclic Monoterpenoids in Amber [PDF]

, 1996
Among the more prevalent chiral monoterpenoid compounds in conifers are α-pinene, β-pinene, and smaller amounts of camphene and limonene. The most prevalent chiral monoterpenoid compounds in fossilized resin (referred to as amber in this paper) appear to
Armstrong, Daniel W., Kosmowska-Ceranowicz, Barbara, Zhou, Eve Y., Zukowski, Janusz   +3 more
core   +2 more sources