geogenicadj.

1838 tr. J. P. F. S. Desnoyers in Mag. Nat. Hist. 2 112 It is, however, upon this foundation, that geogenic inferences [Fr. conséquences géogéniques], of the most important character, are based.

1882 Pop. Sci. Monthly Dec. 170 They are the geogenic agencies which have molded the mineral mass of the earth.

1957 ELH 24 227 This attitude..was thoroughly in accord with the most advanced geogenic theory of Shelley's day.

1996 Huntington Libr. Q. 59 346 These images would have appealed as well to a population of amateur geologists prepared to recognize the formations pictured..as keys to the important geogenic questions of the day.

1956 VIe Congr. Internat. de la Sci. du Sol Rapports II. 364 The macrostructures were classified in structures with or without structural elements. Under the first belong..geogenic elements (a result of geological processes).

1963 A. H. Meyer & J. H. Strietelmeier Geogr. in World Soc. xvii. 355/2 Let us examine three case studies: the first illustrating the geogenic elements associated with a particular disease.

1972 Geoderma 7 146 The numbers of biogenic voids are lower, those of geogenic voids are higher.

1990 T. Poetsch in L. A. Douglas Soil Micromorphol. 541 The observed geological (geogenic) changes are very important in determination of the weathering susceptibility of the Kutum granite.

2007 Ambio 36 79/1 In the West Bengal delta, the source of As [= arsenic] is also known to be geogenic.