Adjective: "(of a rock or rock sequence) exhibiting, or relating to, features that indicate whether it has been overturned, or whether it lies in the orientation that it was initially deposited"[edit]
1992 — Laurence M. Nuelle, Warren C. Day, Gary B. Sidder, Cheryl M. Seeger, "Geology and Paragenesis of the Pea Ridge Iron Ore Mine, Washington County, Missouri—Origin of the Rare-Earth-Element- and Gold-Bearing Breccia Pipes", published in Strategic and Critical Minerals in the Midcontinent Region, United States, page A1
Geopetal structures within void spaces in one of the REE-bearing breccia pipes indicate that the magnetite deposit has not been tilted significantly since emplacement of the breccia pipes.
1999 — Rachel Wood, "Case Study 3.1: Little Dal Group, Mackenzie Mountains, north-western Canada (Neoproterozoic: 1100-780 Ma)", Reef Evolution, page 42
Geopetal structures several centimetres wide within the primary cavities are common, and early marine cement is abundant.
1959 — Martin Kirchmayer, "Über ein Geopetalgefüge im Chert (Flint) von Nevada, USA", published in Neues Jahrbuch für Geologie und Paläontologie: Monatshefte, page 209
It has been assumed that the geopetal direction of the sedimentation and the direction during the diagenetic process is the same.
1983 — G. J. J. Aleva, "On Weathering and Denudation of Humid Tropical Interfluves and Their Triple Planation Surfaces", published in Geologie en Mijnbouw, Volume 62, page 387
Weathering and denudation are processes that proceed from the earth's surface downwards, they are geopetal.
1978 — Jaromír Hrbek, Radiational Theory of Gravitation and Structure of Matter: Gravitation as an Inexhaustible Source of Energy, page 249
When the Moon passes through the meridian, the speed of light is changed along the E - M connecting line: it increases in both directions (geofugal and geopetal) compared with the speeds measured in the same place when the Moon is in its nadir.