Geology (from the Ancient Greek γῆ, gē, i.e. "earth" and -λoγία, -logia, i.e. "study of, discourse") is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also refer to the study of the solid features of any terrestrial planet or natural satellite, (such as Mars or the Moon).
Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an orebody, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.
The past history of our globe must be explained by what can be seen to be happening now. No powers are to be employed that are not natural to the globe, no action to be admitted except those of which we know the principle.
James Hutton, Theory of the Earth. (Paper, published in Transactions of the Royal Society of Edinburgh in 1785).
The increasing number of factors playing a role in the various complexes of natural phenomena are the origin of new, so-called emergent, laws and characteristics. Based on this principle of emergence, a hierarchy of sciences can be distinguished: physics-chemistry-geology-biology-psychology.
Josiah Gilbert Holland, in Rev. S. Pollock Linn Golden Gleams of Thought from the Words of Leading Orators, Divines, Philosophers, Statesmen and Poets, A.C. McClurg & Company, 1881, p. 280.
The transition to a low carbon economy by 2050 will involve irreversible step-changes in the cultural, economic and natural domains, with qualitatively different socio-economic configurations before and after. COMPLEX will develop new modelling tools for managing step-change dynamics by working across a wide range of spatio-temporal scales, and integrating the knowledge of many stakeholder communities, for example in respect of land-use change driven by carbon-related technologies.