Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Resin - LoveToKnow 1911 Certain resins are obtained in a fossilized condition, amber being the most notable instance of this class; African copal and the kauri gum of New Zealand are also procured in a semi-fossil condition. The general conception of a resin is a noncrystalline body, insoluble in water, mostly soluble in alcohol, essential oils, ether and hot fatty oils, softening and melting under the influence of heat, not capable of sublimation, and burning with a bright but smoky flame. The hard transparent resins, such as the copals, dammars, mastic and sandarach, are principally used for varnishes and cement, while the softer odoriferous oleo-resins (frankincense, turpentine, copaiba) and gum-resins containing essential oils (ammoniacum, asafoetida, gamboge, myrrh, scammony) are more largely used for therapeutic purposes and incense. www.1911encyclopedia.org /Resin   (417 words)

Fossil - Wikipedia, the free encyclopedia However, fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint or feces of a dinosaur or reptile. The fossil record was one of the early sources of data relevant to the study of evolution and continues to be relevant to the history of life on Earth. Fossil resin (colloquially called amber) is a natural polymer found in many types of strata throughout the world, even the Arctic. en.wikipedia.org /wiki/Fossil   (2074 words)

Fossil - Wikivisual A fossil normally preserves only a portion of the deceased organism, usually that portion that was partially mineralized during life, such as the bones and teeth of vertebrates, or the chitinous exoskeletons of invertebrates. Fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint or feces of a reptile. The fossil record was one of the early sources of data relevant to the study of evolution and continues to be relevant to the history of life on Earth. en.wikivisual.com /index.php/Fossil   (2948 words)

What are fossils Many fossils are from extinct groups, whether that be a small group such as a species, or a much larger including taxon such as a family, superfamily, class or phylum. Such fossils are more precisely called body fossils; for the most part, they are rocks, with fossil resin, a polymer with the street name of amber being a notable exception. The oldest known fossils are usually considered to be stromatolites usually described as layered structures formed by the entrapment of minerals in mucous generated by cyanobacterial colonies. www.collectingfossils.org /whatarefossils.htm   (367 words)

Fossil Resources & Information - fossil watches   (Site not responding. Last check: ) The totality of fossils and fossil art their placement in rock formations and sedimentary layers (strata) is known as the fossil resin fossil record. Fossilized deposits of heavy carbon (acritarchs) that are also indicative of earlier life (3.8 billion years ago) fossil fuels are currently proposed as the remains of the earliest life on Earth. Trace fossils are the remains of trackways, burrows, footprints, fossil eggs and egg-shells, nests and droppings. www.bizhisto.com /Biz-Retail-Companies-El---Gb/Fossil.html   (938 words)

Amber - Wikipedia, the free encyclopedia Amber is a fossil resin much used for the manufacture of ornamental objects. Amber is heterogeneous in composition, but consists of several resinous bodies more or less soluble in alcohol, ether and chloroform, associated with an insoluble bituminous substance. Relics of an abundant flora occur as inclusions trapped within the amber while the resin was yet fresh, suggesting relations with the flora of Eastern Asia and the southern part of North America. en.wikipedia.org /wiki/Amber   (2644 words)

Resins First, a mixture of drying oil and resin will offer a paint film that can be worked over within hours or, at maximum, the next day because when the solvent evaporates, which happens within several hours, the resin hardens, holding the drying oil in place until it can oxidize and solidify. Dammar is a soft resin and is readily dissolved in turpentine (not in mineral spirits, because it is then partially insoluble) at room temperature and is the most popular additive to a painting medium as well as the most commonly used resin for varnishing. It is a viscous liquid resin; such resins exude from certain trees and are often referred to as balsams. www.trueart.info /resins.htm   (1250 words)

Unique Artisan Crafted Fossil Jewelry and Fossil Cabochons Fossils are the mineralized or otherwise preserved remains or traces of animals and plants. amber is fossil resin or tree sap which sometimes traps and preserves insects, plants and seeds. are fossils of an extinct sea creature with a long conical shape. www.leeleeko.com /fossils.htm   (155 words)

Briefly about amber The resin of coniferous trees from at least 40 mln years ago was transported by rivers from the area of Scandinavia and the present Baltic region, and deposited in a Teriary formation called blue earth, in the Chłapowo-Sambian estuary on the northern coast of the Eocene sea. Recent and fossil beaches of the Baltic Sea (several thousand years old), with which we often erroneously associate the origin of amber (the Baltic is only 10,000 years old), are the last stage of the amber's travels. For many generations, the application of fossil resins in medicine was more or less consciously based on their producing an excess of negative electric charges. www.hermuz.hu /engweb/nws/amber2.htm   (2769 words)

Fossil Preparation and Conservation   (Site not responding. Last check: ) Pure resins are mixed with their solvents to form a very thin, watery solution which is then applied to the specimen (or the specimen is immersed in the solution). The idea is to get the resin where it's needed, and in order to penetrate the specimen's surface and carry resin down into the interior of the fossil bone, the consolidant must be thin or else it will be deposited on the surface of the bone only, like shellac or varnish used in the past. Fossil specimens, whether they are in scientific collections, or in a private collection must be considered valuable and irreplaceable objects. www.flmnh.ufl.edu /natsci/vertpaleo/resources/prep.htm   (5476 words)

Sanders Studios: Tutorials - Resins and Varnishes RESIN: any of a class of nonvolatile (non evaporating), solid or semisolid organic substances obtained directly from certain plants as exudations or prepared by polymerization of simple molecules: used in medicine and in the making of varnishes and plastics. Unlike its fossil counterpart, soft resin is resoluble, therefore causing the same concerns as any resoluble resin when used as an ingredient in painting medium. It has several advantages: it leaves no sticky, gummy (resin) residue upon evaporation, it does not deteriorate with age, its price is a small fraction of that of gum turpentine, and it is less likely to affect persons prone to allergic reactions. www.sanders-studios.com /instruction/tutorials/historyanddefinitions/resinvarnish.html   (3269 words)

fossils - Search Results - MSN Encarta Fossil, remains or traces of prehistoric plants and animals, buried and preserved in sedimentary rock, or trapped in organic matter. Amber, fossil resin that, in prehistoric times, exuded from various now-extinct coniferous trees. Archaeopteryx, small, feathered dinosaur that is known from fossils found in rock that was deposited during the late Jurassic Period, about 150... encarta.msn.com /fossils.html   (233 words)

Amber – fossil resin Possible reasons for pathological overproduction of resin in amber trees were consequences of natural disasters and climate changes: lightning, early frosts, cloudbursts, increased concentration of soil salts and air humidity. Because of intensive resin exertion in the beginning of the Oligocene period amber forests were growing sickly very slowly. The latter are in the form of the inside trunk (12%): pieces of resin in the bark or between the trunk and the bark. www.pgm.lt /Gintaras/amber_fossil.en.htm   (294 words)

GemRocks: Amber Krantzite - soft fossil resin that occurs sporadically in lignites of the coal region of Schraufite - a reddish resin that occurs with jet and lignite in the Russian Carpathian mountains. Resins (natural ones such as colophony, gutta-percha and sandarac) - several that have reached the brittle state have been incorrectly termed amber. www.cst.cmich.edu /users/dietr1rv/amber.htm   (3632 words)

Newsvine - What are fossils ? Nowadays, the science that studies fossils is called Paleontology, and is closely related to the science of evolutionary biology in the formulation, and validation, of evolutionary theories. Today, when the word fossil is thrown in the air, we often think of the tiny imprint of a 300 000 years old plant, or of a mosquito stuck in tree resin, or even of the bones of a T-rex undug from the our very own grounds in Canada. Note that the fossils themselves are never dated, it is the rock in which the fossil is found that is dated (the fossils are rocks anyways). miguel.newsvine.com /_news/2006/07/13/286982-what-are-fossils-   (2648 words)

The Skeptiseum - Fossils In background are insects preserved in amber (fossil resin) and the imprint of a fish. The insect was trapped in resin from the now-extinct Hymenea Protera tree which time has transformed into this non-mineral gemstone material. This fossil fish that lived during the Eocene Epoch (55-38 million years ago) was discovered at Green River, Wyoming--the source for many such specimens. www.skeptiseum.org /exhibits/creationism/fossils.html   (157 words)

Dominican Amber: taph: Lagerstätten Catalogue: University of Bristol   (Site not responding. Last check: ) Resin is produced when the bark of a tree is cracked opened after an attack by wood-boring beetles or a limb is broken off the tree. Fossil resin's molecular make-up is carbon and hydrogen atoms that readily form hexagonal rings. This section is part of a Fossil Lagersttten web site which has been built up as a result of the efforts of the 2002-3 MSc Palaeobiology class in the Department of Earth Sciences at University of Bristol, as part of a course in Scientific Communication. palaeo.gly.bris.ac.uk /Palaeofiles/Lagerstatten/DomAmber/taphonomy.html   (272 words)

Aftim Acra: The Amber of Lebanon; an Ecological Museum of Fossils The fossilized biological inclusions are consequently well preserved indefinitely, and could serve as specimens for study by paleobotanists and paleozoologists. Knowledge of the chemistry of the fossil resin of Baltic amber, and the nature of its biological inclusions, has led to the conclusion that the parent, amber-producing trees are coniferous ones which represent a number of genera such as Pinus (pines), Picea (spruces), and Abies (firs). Hence, the coexistence of the fossil remains of both terrestrial and marine plants and animals in the form of fossils in the Jarash area. almashriq.hiof.no /ddc/projects/amber/acra/amber.html   (5106 words)

About the History and Properties of Amber True amber--Succinum electrum (Dana)--the succinite of mineralogists, is the resin of a coniferous tree which was of the vegetable life of the Miocene age of the Tertiary period in geology. The vegetable origin of amber has not been definitely established in science, but one of the evidences that it was a flowing vegetable resin, that is accepted as indisputable, is the oft-occurring presence in amber of insects, or parts of them, which must have been caught and imprisoned when the fresh resin was fluent. Amber, or succinite, then, is a fossil resin occurring in irregular masses with no cleavage and having a conchoidal fracture. www.jjkent.com /articles/history-properties-amber.htm   (700 words)

NOVA | Jewel of the Earth | Amber Time Machine | PBS She scanned the surroundings, always on the lookout for hungry, sinister creatures that lurked in ambush—especially one well-adapted predator, the resin bug, a large, hairy-legged creature endowed with a huge beak that could easily penetrate the body and suck out the blood of an unwary bee. The resin bug's habit of coating the front legs and body parts with resin was repulsive, though effective in ensnaring prey. Finally, perhaps during a storm, the fossilized resin broke loose and came crashing down to the ground, lodging in a small crevice at the base of the tree. www.pbs.org /wgbh/nova/jewel/time.html   (1477 words)

Fossils and Migration Patterns in Early Hominids Students will be plotting the general distribution of major fossil hominid taxa on a small (8.5 x 11) fl and white world map and/or plotting color coded push pins on a large world map at the front of the classroom on a large world map. Day 2 is for the completion and review of discussion questions, or you may choose to postpone review of the discussion until after a day or two of reading an article or watching a video that may help students to refine the answers to their questions. It is the type, dates, and distribution of these fossil specimens that gives us an indication of where humankind's earliest ancestors had migrated and originated. www.accessexcellence.org /AE/AEPC/WWC/1995/fossilshominids.html   (1358 words)

What is amber? This is a problem when attributing Baltic fossil resin to a species of pine, as up until recently no extant pine tree resin was known to contain succinic acid. It is a common misconception that resin was only vented onto the tree’s external surfaces; branches, trunk and surface roots, as in the picture of a cherry tree trunk (to the left). Resin was in fact also exuded within the tree its self forming moats or channels of hardening resin within the wood matrix. www.gplatt.demon.co.uk /whatis.htm   (1056 words)

Fossil Preparation IV: Making Molds and Casts Casts are made from fossils so the original fossil may be preserved from damage, and also so it may be made available to paleontologists to study. For example, the original fossilized wing bones of Quetzalquatalus (a large species of pterosaur) are kept in the collections room at Texas Memorial Museum in Austin, Texas. The resin has to pick up fine details, such as the serations along the edge of a Tyrannosaurus rex tooth, but also be sturdy enough to withstand the molding process without tearing, or losing its fine detail. www.suite101.com /article.cfm/paleontology/47175   (402 words)

Definition: resin from Online Medical Dictionary Any one of a class of yellowish brown solid inflammable substances, of vegetable origin, which are nonconductors of electricity, have a vitreous fracture, and are soluble in ether, alcohol, and essential oils, but not in water; specif, pine resin. Resins exude from trees in combination with essential oils, gums, etc, and in a liquid or semiliquid state. Highgate resin, a fossil resin resembling copal, occuring in blue clay at Highgate, near London. cancerweb.ncl.ac.uk /cgi-bin/omd?resin   (190 words)

Blue Amber = Ambar Azul = Dominican Amber Amber (succinite / retinite) is a fossil resin. The resins of these areas have extruded from trees (during the tertiary age (25-50 million years). Copal is a much younger resin which also is found in many places like Colombia and the Dominican Republic, but its behavior is different from that of the "genuine" (old) amber. www.ambarazul.com /amberhist.html   (762 words)

Kansas Amber Fossils found in the state include a variety of invertebrates, from cockroaches to mollusks, and vertebrates, from pterodactyls to mosasaurs. The Kansas fossil resin was placed in the Mesozoic, because of this stratigraphic position in sequence and its association with wood identified by George F. Beck as "Auracaria" (Buddhue, 1938b, p. Fossil bacteria and testate amoebae in jelinite used to be available for viewing online, but Waggoner's abstract is at http://www.ucmp.berkeley.edu/museum/pbios/abstracts17_1to4.html. www.emporia.edu /earthsci/amber/ksamber.htm   (2659 words)

Fossil Mushroom The fossil resin known as amber is appreciated for its warmth and beauty, hence its extended history of mining and jewellry manufacture. After studying all the details, the fossil mushroom was identified as an ink-cap (of the genus Coprinus). We recognise the expertise of the investigators in their description of the fossil and the way it relates to living forms. www.biblicalcreation.org.uk /scientific_issues/bcs003.html   (421 words)

Amber Amber is fossil resin extruded as sap, usually from an injured or scarred deciduous or coniferous tree. Amber is a hardened resin primarily composed of carbon, hydrogen and oxygen. There are other fossil amber localities located throughout the world, but some of these localities have a young form of amber called copal. www.cartage.org.lb /en/themes/Sciences/Paleontology/FossilsAndFossilisation/Amber/Amber.htm   (334 words)

Resin - definition from Biology-Online.org Copal, mastic, quaiacum, and colophony or pine resin, are some of them. When mixed with gum, they form the gum resins, like asafetida and gamboge; mixed with essential oils, they frorm balsams, or oleoresins. (Science: chemical) Highgate resin, a fossil resin resembling copal, occuring in blue clay at Highgate, near london. www.biology-online.org /dictionary/Resin   (227 words)

Baltic amber and other fossil and recent resin Simetite is a fossil resin from red to yellow chide found in Sicily. Aykaite is a yellow on reddish fossil resin in the late cretaceous period strata (80-90 m years) near Ayka - 120 km to south-west from Budapest. There are many important resin outputs in Siberia, in the Near East Asia, Lebanon, Geologically they are the oldest outputs in the early cretaceous period (130-135 m years) and in the middle of the Jurassic period (approximately 160 m years). www.pgm.lt /Gintaras/baltic.en.htm   (416 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.