Results 41 to 50 of about 429 (105)
Evolution of ideas about the origin of fossil resins
Мінеральні 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
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Мінеральні ресурси УкраїниDuring the exploitation of the Zakhidne Pershe amber deposit in the Klesivskyi amber-bearing district, black organic material classified as “black resins” was found among the extracted amber (succinite) in the sediments of the productive Mezhyhirska ...
D. M. Koval +6 more
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Morphological Convergence in Forest Microfungi Provides a Proxy for Paleogene Forest Structure [PDF]
, 2018 Amber, fossilized plant resin from gymnosperms and angiosperms, is renowned for preserving a wide range of organisms in microscopic fidelity. These so-called amber inclusions comprise many groups of organisms, ranging from bacteria to arthropods and ...
Alekseev +207 more
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Innovative and Applied Research in Biology: Proceedings, Vol.1 [PDF]
, 2019 Projekti: ZD2016/AZ81 & ZD2016 ...
77th International Scientific Conference of the University of Latvia
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Microhardness as a method for investigation of fossil resins [PDF]
, 2016 Natural fossil resins are products of deciduous and coniferous trees formed at least 40 million years ago. The fact that fossil resins survived until the present day is due to appropriate processes and conditions. One of them is the ability to polymerize.
Czapla, Dominika +2 more
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LONGITUDINAL STABILITY OF WHEELED MOBILE ROBOTS - DEGREE OF STABILITY [PDF]
In this paper, the research focus is on the longitudinal stability of a wheeled mobile robot, using a geometric similarity coefficient (this coefficient is defined in the paper).
Lilov, Stoyan +3 more
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Походження бурштину-сукциніту: від міфів до сучасних теорій [PDF]
, 2017 У статті розглядаються деякі спірні положення теорії походження викопних смол і бурштину-сукциніту. На основі аналізу історії формування буровугільних басейнів і прилеглих морських акваторій у кайнозої Європи, геологічного положення та речовинного ...
Мацуй, В.М. +1 more
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A botanical view of the ‘Baltic amber forest’: new evidence from seed plants, lichens and fungi [PDF]
, 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
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Amber deposits of Ukraine and prospects of their development
Мінеральні ресурси України, 2017 Geological conditions for formation and territorial distribution of amber deposits in Ukraine have been analyzed. Amber deposits for jewelry production are connected with the Baltic-Dnieper Subprovince within the Ukrainian part of which two amber-bearing
H. I. Rudko
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Zephyrus, 2009 RESUMEN: Se exponen los 13 yacimientos prehistóricos de la Cornisa Cantábrica (norte de España), con edades desde el Paleolítico superior hasta la Edad del Bronce, con presencia de ámbar.
Esteban ÁLVAREZ FERNÁNDEZ +2 more
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