The participation of sunlight in the natural chemistry of the earth is presented as a unique field of study, from historical observations to prospects for future inquiry. A compilation of known reactions shows the extent of light-driven interactions between naturally occurring components of land, air, and water, and provides the backdrop for an outline of the mechanisms of these phenomena. Catalyzed reactions, uncatalyzed reactions, direct processes, and indirect processes all operate in natural photochemical transformations, many of which are analogous to well-known biological reactions. By overlaying photochemistry and surface geochemistry, complementary approaches can be adopted to identify natural photochemical reactions and discern their significance in the environment.

中文翻译：

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光地球化学调查。


阳光在地球自然化学中的参与被视为一个独特的研究领域，从历史观察到未来探究的前景。已知反应的汇编显示了土地、空气和水自然成分之间光驱动相互作用的程度，并为这些现象的机制概述提供了背景。催化反应、非催化反应、直接过程和间接过程都在自然光化学转化中进行，其中许多类似于众所周知的生物反应。通过叠加光化学和表面地球化学，可以采用互补的方法来识别自然光化学反应并辨别它们在环境中的重要性。