Acredito que "rheic" está ligado a "rheology"


Rheology (/riːˈɒlədʒi/; from Greek ῥέω rhéō, "flow" and -λoγία, -logia, "study of") is the study of the flow of matter, primarily in a liquid state, but also as 'soft solids' or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied force.[1]

The term rheology was coined by Eugene C. Bingham, a professor at Lafayette College, in 1920, from a suggestion by a colleague, Markus Reiner.[2][3] The term was inspired by the aphorism of Simplicius (often attributed to Heraclitus), panta rhei , "everything flows",[4][5] and was first used to describe the flow of liquids and the deformation of solids. It applies to substances that have a complex microstructure, such as muds, sludges, suspensions, polymers and other glass formers (e.g., silicates), as well as many foods and additives, bodily fluids (e.g., blood) and other biological materials or other materials that belong to the class of soft matter such as food.

o manto (reodo do manto) esta em movimento lento/deslocamentos que formam as correntes convectivas

https://quizlet.com/87745709/geografia-capitulo-5-estrutura-...
https://pt.wikipedia.org/wiki/Reodo
http://brasilescola.uol.com.br/geografia/correntes-conveccao...