mineral+vein
71Hemodialysis — In medicine, hemodialysis (also haemodialysis) is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are in renal failure. Hemodialysis is one of three renal replacement… …
72Talyllyn Railway — Heritage Railway name = Talyllyn Railway Rheilffordd Talyllyn caption = Locomotive No. 4 Edward Thomas stands at Tywyn Wharf station – April 2005 locale = flagicon|WAL Mid Wales terminus = stnlnk|Tywyn Wharf latitude = 52.583 longitude = 4.087… …
73Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …
74Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …
75Hemerdon Mine — pits near Lee Moor. The mine, out of operation since 1944, hosts one of the largest tungsten and tin deposits in the world. [ [http://www.mineweb.com/mineweb/view/mineweb/en/page674?oid=41265 sn=Detail Mineweb Article] ]… …
76gold processing — Introduction preparation of the ore for use in various products. For thousands of years the word gold has connoted something of beauty or value. These images are derived from two properties of gold, its colour and its chemical stability.… …
77Ore genesis — The various theories of ore genesis explain how the various types of mineral deposits form within the Earth s crust. Ore genesis theories are very dependent on the mineral or commodity. Ore genesis theories generally involve three components:… …
78sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
79streak — streakedly /streekt lee, stree kid lee/, adv. streakedness, n. streaker, n. streaklike, adj. /streek/, n. 1. a long, narrow mark, smear, band of color, or the like: streaks of mud. 2. a portion or layer of something, distinguished by color or… …
80endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …
