- GLOSSARY OF VOLCANIC TERMS
Glassy or partially crystallized fragments which represent samples of an erupting magma. These include fragments such as pumice, scoria, reticulate, achneliths (Pele's tears, Pele's hair), and various types of volcanic bombs (Cas and Wright, 1987, p. 47-53).
Glossary of volcanic terms. - University of Wisconsin Oshkosh. G. J. Hudak. 2001.
Look at other dictionaries:
cognate lithic fragment — GLOSSARY OF VOLCANIC TERMS Non vesiculated juvenile magmatic fragments that have silicified from the erupting magma (Cas and Wright, 1987, p. 54) … Glossary of volcanic terms
achnelith — GLOSSARY OF VOLCANIC TERMS A type of juvenile fragment characterized by smooth, glassy molded surfaces formed from lava spray from extremely fluid mafic eruptions (Walker and Croasdale, 1972) … Glossary of volcanic terms
Osteochondritis dissecans — For other uses, see OCD (disambiguation). Osteochondritis dissecans Classification and external resources A large flap lesion in the femur head typical of late stage Osteochondritis dissecans. In this case … Wikipedia
Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… … Universalium
Zhoukoudian — Peking Man Site at Zhoukoudian * UNESCO World Heritage Site Country … Wikipedia
Nemertea — For the Romanian village that bears this name, see Gura Teghii. Nemertea … Wikipedia
education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… … Universalium
performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains … Universalium
reproductive system, plant — Introduction any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative … Universalium
Disease — Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the… … Medical dictionary