Results 51 to 60 of about 13,310 (214)
Bulletin of the Geological Society of Finland, 2008 Inclusions of wood debris loosened from pine-like trees are abundant in Baltic amber of Eocene and Oligocene age. The possibilities to find insect frass and excrement among wood debris are outlined and some examples are given. Comparison with the frass and excrement produced by present-day insects provide a possibility to identify insects even though ...
M. Nuorteva, K.A. Kinnunen
openaire +2 more sources
CO2‐Assisted Foaming of PLA–Cellulose Acetate Blends for Peat‐Free Horticultural Substrates
Polymer Engineering &Science, EarlyView.Engineered porous substrate facilitating seed incorporation, water retention, and plant growth. ABSTRACT This study investigates carbon dioxide assisted (CO2) foaming of polylactic acid (PLA)–cellulose acetate (CA) blends to develop biodegradable substrates for horticultural applications.
Kaleum Meaney +8 more
wiley +1 more source
An ant-associated mesostigmatid mite in Baltic amber. [PDF]
Biol Lett, 2014 Fossil mesostigmatid mites (Acari: Parasitiformes: Mesostigmata) are extremely rare, and specimens from only nine families, including four named species, have been described so far. A new record ofMyrmozerconsp. described here from Eocene (ca44–49 Myr) Baltic amber represents the first—and so far only—fossil example of the derived, extant family ...
Dunlop JA +3 more
europepmc +6 more sources
The Provenance of Silver in the Viking‐Age Hoard From Bedale, North Yorkshire
Archaeometry, EarlyView.ABSTRACT The acquisition of silver was a key motive propelling the Viking expansion out of Scandinavia; identifying the sources of Viking silver during the early part of the Viking Age can provide critical insights into the relative significance of western European and eastern, Islamic wealth in the Viking expansion.
Jane Kershaw +5 more
wiley +1 more source
The culture of amber in Scotland [PDF]
, 2013 The last place most people will associate with amber is Scotland. Yet, it is the place where some of the oldest inclusions (from the Carboniferous) in tree resin have been found. Amber is defined differently by different cultures.
Clark, N.
core
Amber in prehistoric Iberia: New data and a review. [PDF]
PLoS ONE, 2018 Provenancing exotic raw materials and reconstructing the nature and routes of exchange is a major concern of prehistoric archaeology. Amber has long been recognised as a key commodity of prehistoric exchange networks in Europe.
Mercedes Murillo-Barroso +5 more
doaj +1 more source
NONDESTRUCTIVE TESTING OF BALTIC AMBER: OPTICAL ANALYSIS OF MACRO-AND MICROSTRUCTURE [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2020 Subject of Research. We propose a solution to the problem of nondestructive testing formacro- and microstructure of Baltic amber by optical analysis. The considered method provides for high-quality characteristics of materials and amber-made products ...
Iana I. Verkhovskaia +1 more
doaj +1 more source
Boreas, EarlyView.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source
The fossil crown wasp Electrostephanus petiolatus Brues in Baltic Amber (Hymenoptera, Stephanidae): designation of a neotype, revised classification,and a key to amber Stephanidae. [PDF]
, 2008 The fossil crown wasp Electrostephanus petiolatus Brues comb. rev.(Stephanidae, Electrostephaninae) is re-described from a single male preserved in middle Eocene Baltic Amber.
Engel, Michael S., Ortega Blanco, Jaime
core +4 more sources
The circulation and distribution of classical Greek coinage
The Economic History Review, EarlyView.Abstract From a sample of the most prominent Greek city‐states, data involving a total of 999 hoards and 160,007 coins from 550 to 300 BC were collected to discern the relative magnitudes, consistency of issue, and distribution of Classical Greek coinages.
Zane Mullins
wiley +1 more source