21. Spinels in the groundmass suggest that crustal contamination was extensive. 22. Rift graben lakes are formed from crustal stretching also known as rifting. 23. The Cerro Escorial ignimbrite may be of crustal origin and is dacitic. 24. The Huambo field is located within the Arequipa crustal domain. 25. The Winton crustal anomaly was, after all, discovered in 2015. 26. Tectonic units are formations formed due to large-scale crustal processes. 27. Therefore, inhomogeneous mantle is formed and causes crustal thinning. 28. *During Lower Mesozoic, eastern China experienced crustal thinning. 29. Volcanism appears to be associated with crustal extension at Erciyes. 30. Accommodation zones may be located where older crustal structures intersect the rift axis.
