Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Mining | Pressure, temperature, and the availability of the most abundant chemical components are the parameters of the geochemical environment that determine which mineral phases are stable. On the basis of these variables, it is possible to classify all the natural geochemical environments of the Earth into two major groups--primary and secondary. The primary environment extends downward from the lower levels of circulating meteoric water to the deepest level of the crust and may extend into the mantle. It is an environment of high temperature and pressure, restricted circulation of fluids, and relatively low free-oxygen content. The secondary environment is the environment of weathering, erosion, and sedimentation at the surface of the Earth. It is characterized by low temperatures, nearly constant low pressure, free movement of solutions, and abundant free oxygen, water, and carbondioxide. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)47 45 4F 43 48 45 4D 49 43 41 4C 45 4E 56 49 52 4F 4E 4D 45 4E 54 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000111 01000101 01001111 01000011 01001000 01000101 01001101 01001001 01000011 01000001 01001100 00100000 01000101 01001110 01010110 01001001 01010010 01001111 01001110 01001101 01000101 01001110 01010100 |
HTML Code (1990) (references)G E O C H E M I C A L   E N V I R O N M E N T |
ISO 10646 (1991-1993) (references)0047 0045 004F 0043 0048 0045 004D 0049 0043 0041 004C 0045 004E 0056 0049 0052 004F 004E 004D 0045 004E 0054 |
Encryption (beginner's substitution cypher): (references)413949374239474337354623948564352494847394854 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
