Geochimica et Cosmochimica Acta publishes research papers in a wide range of subjects in terrestrial geochemistry, meteoritics, and planetary geochemistry. The scope of the journal includes: 1). Physical chemistry of gases, aqueous solutions, glasses, and crystalline solids 2). Igneous and metamorphic petrology 3). Chemical processes in the atmosphere, hydrosphere, biosphere, and lithosphere of the Earth 4). Organic geochemistry 5). Isotope geochemistry 6). Meteoritics and meteorite impacts 7). Lunar science; and 8). Planetary geochemistry.

Geochimica et Cosmochimica Acta發表的研究論文涉及地球地球化學、流星學和行星地球化學等廣泛領域。期刊的范圍包括:1）氣體、水溶液、玻璃和晶體固體的物理化學2）火成巖和變質巖學3）地球大氣、水圈、生物圈和巖石圈中的化學過程4）有機地球化學5）同位素地球化學6）隕石和隕石撞擊7)。月球科學;和8)。行星地球化學。