命令变成大炮
发表于 2025-3-25 07:09:32
http://reply.papertrans.cn/39/3873/387297/387297_21.png
Nebulous
发表于 2025-3-25 09:33:35
,Gold During the Pre-Classical (Primitive) Period (5000 B.C.–600 B.C.),ly attracted by its intrinsic beauty, great maleability, and virtual indestructibility. As tribal development progressed through the Paleolithic, Mesolithic, and Neolithic ages, and as people congregated into civilized centers, the metal appears to have taken on a sacred quality because of its endur
墙壁
发表于 2025-3-25 15:09:08
http://reply.papertrans.cn/39/3873/387297/387297_23.png
cauda-equina
发表于 2025-3-25 19:41:41
http://reply.papertrans.cn/39/3873/387297/387297_24.png
MUMP
发表于 2025-3-25 20:37:51
Gold During the Renaissance,ent of Humanism, a revolution in art, sculpture, and letters but with relatively little progress in natural science, and during much of the sixteenth century by the Reformation led by the son of a miner, Martin Luther (1483–1546). The Humanists devoted themselves to the study of the language, litera
打火石
发表于 2025-3-26 01:26:59
Gold During the Transition to Modern Scientific Views,nto the early years of the nineteenth century, marks a time span of nearly three centuries, during which many changes took place in politics, social structure, economics, and science in Europe and the newly discovered (i.e., by Europeans) lands of the New World (Americas), Africa, the Far East, Sibe
magenta
发表于 2025-3-26 06:58:48
http://reply.papertrans.cn/39/3873/387297/387297_27.png
Odyssey
发表于 2025-3-26 10:51:29
Geochemistry of Gold,eam sands. With the onset of civilization and the congregation of early man into urban communities some unknown worker in gold (the first metallurgist) discovered that gold nuggets were variable in composition and could be purified by fire employing a cementation process using common salt. After fir
jealousy
发表于 2025-3-26 14:35:36
,The Origin of Epigenetic Gold Deposits—the Ore-Magma Theory, postulated by the midnineteenth century: the ore-magma theory involving siliceous melts, the magmatic-hydrothermal theory, secretion theories, and abyssal theories. The ultimate source of the gold, other metals, and gangue elements (minerals) in gold deposits is mentioned only briefly in these earl
Allowance
发表于 2025-3-26 17:10:59
http://reply.papertrans.cn/39/3873/387297/387297_30.png