Results 31 to 40 of about 76,981 (105)

A New Species of Eocene Whitefly—Gregorites michalskii sp. nov. (Hemiptera, Sternorrhyncha, Aleyrodidae) from Baltic Amber

open access: yesDiversity
This paper describes a new species of extinct whitefly in the genus Gregorites Drohojowska & Szwedo, 2024, from the family Aleyrodidae. This species has been identified based on an inclusion in Eocene Baltic amber.
Jowita Drohojowska   +2 more
doaj   +1 more source

BALTIC AMBER IN HISPANIA DURING LATE ANTIQUITY. CONTACTS, NETWORKS AND EXCHANGE

open access: yesOxford Journal of Archaeology, Volume 43, Issue 2, Page 195-216, May 2024.
Summary Amber is a material of great social value that has been identified at various archaeological sites on the Iberian peninsula dating to Late Antiquity. The objects, mostly necklace beads, have been discussed to date with limited results in relation to a small number of studies.
Elena Vallejo‐Casas   +3 more
wiley   +1 more source

MARIE-VICTOR ERNEST BAUDRIMONT

open access: yesRevista CENIC Ciencias Químicas, 2022
Ernest Baudrimont (1821-1885) was a French chemist that carried a detailed study of the derivatives of sulfur and phosphorus, the treatment of cholera and diabetes, the origin of mineral waters, and certain organic chemistry reactions.
Jaime Wisniak
doaj  

An overview of Principal Components Analysis approaches in Raman studies of cultural heritage materials

open access: yesJournal of Raman Spectroscopy, Volume 55, Issue 2, Page 125-147, February 2024.
The present overview answers the need of evaluating the current state of the art concerning the application of principal components analysis (PCA) to Raman spectroscopy studies of cultural heritage materials. Painting materials, both colouring and binding ones, were considered, together with natural and synthetic glasses, biogenic and mineral ...
Alessia Coccato, Maria Cristina Caggiani
wiley   +1 more source

Amber Networks in Prehistory: North-Eastern Iberia as a Case Study

open access: yesEuropean Journal of Archaeology
This study concerns prehistoric amber networks in north-eastern Iberia, emphasizing its distinct exchange dynamics compared to other regions of the Iberian Peninsula.
M. Murillo-Barroso   +3 more
semanticscholar   +1 more source

A botanical view of the ‘Baltic amber forest’: new evidence from seed plants, lichens and fungi [PDF]

open access: yes, 2019
Baltic amber forms the largest amber deposit on earth and it is particularly well-known for the plethora of arthropod inclusions. The floristic composition, habitat types and climate of its Eocene source area, however, are still controversial.
Kaasalainen, Ulla   +3 more
core  

Baltic Amber in Hungarian Bronze Age. New data and current stage of research

open access: yesSprawozdania Archeologiczne
Amber was one of the key raw materials distributed in Bronze Age Europe. One of its varieties – succinite – wasexchanged over a vast area stretching from its sources on the southern shores of the Baltic Sea to the shores of the Mediterranean Sea.
M. Jaeger   +15 more
semanticscholar   +1 more source

Characterisation and palaeoenvironmental significance of amber from the Tukau Formation, NW Sarawak, Malaysia

open access: yesWarta Geologi
Amber fragments recovered in situ from the Tukau Formation (Middle Miocene to Pliocene) in northwest Sarawak were analysed to assess their physical and chemical characteristics.
Y. N. Fong
semanticscholar   +1 more source

Evolution of ideas about the origin of fossil resins

open access: yesМінеральні ресурси України, 2017
The paper deals with evolution of ideas about the origin of fossil resins as physically and chemically individualized organic compounds – pro­ducts of natural processes in the Earth’s crust, biogenic origin and noncrystalline structure.
M. A. Bogdasarov, H. I. Rudko
doaj  

From gallipot — resin upto amber-succinite

open access: yes, 2010
У статті розглянуто проблему походження бурштину-сукциніту та викопних бурштиноподібних смол. Охарактерізовано чотири етапи фосілізації живиці хвойних дерев у: 1) «бурштиновому лісі»; 2) палеоторфовищах; 3) морських водойомах; 4) наземних та підземних ...
Мацуй, В.М.
core  

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