21. A few deep drill holes into oceanic crust have intercepted gabbro, but it is not layered like ophiolite gabbro. 22. Surface exposures of the ophiolite basement can be seen in the Segama Valley, Darvel Bay, Telupid and Kudat. 23. Oceanic subduction ( or underthrusting ) is evidenced for the western and central parts by slivers of ophiolite and blueschist metamorphism. 24. An ophiolite is a suite of geological formations which represent a slice through a section of mantle ) thrust onto the continental crust. 25. The Palawan trough is thought to be due to downbending of the continental crust due to the weight of the ophiolite thrust sheet. 26. There is a great interest in petrologic and structural constraints on the origin of foliated gabbro near Khandria, on the Troodos Ophiolite . 27. A classic example is the Coast Range ophiolite of California, which is one of the most extensive ophiolite terranes in North America. 28. A classic example is the Coast Range ophiolite of California, which is one of the most extensive ophiolite terranes in North America. 29. Perhaps the best-preserved ophiolite on Earth, the Semail Ophiolite, lies exposed in the mountains of the UAE and northern Oman. 30. Perhaps the best-preserved ophiolite on Earth, the Semail Ophiolite , lies exposed in the mountains of the UAE and northern Oman.
