Research Paper GEOSPHERE Structure and metamorphism beneath the obducting Oman ophiolite: Evidence from the Bani Hamid granulites, northern GEOSPHERE; v. 11, no. 6 Oman mountains doi:10.1130/GES01199.1 M.P. Searle1, D.J. Waters1, J.M. Garber2,3, M. Rioux3, A.G. Cherry1,*, and T.K. Ambrose1 18 figures; 1 table; 5 supplemental files 1Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, UK 2Department of Earth Sciences, 1006 Webb Hall, University of California, Santa Barbara, California 93106, USA 3Earth Research Institute, 6832 Ellison Hall, University of California, Santa Barbara, California 93106, USA CORRESPONDENCE:
[email protected] CITATION: Searle, M.P., Waters, D.J., Garber, J.M., ABSTRACT zircon and titanite U-Pb dates span ca. 94.5–89.8 Ma. Peraluminous granitic Rioux, M., Cherry, A.G., and Ambrose, T.K., 2015, Structure and metamorphism beneath the obducting dikes intruding the mantle sequence peridotites are as young as 91.4 Ma and Oman ophiolite: Evidence from the Bani Hamid gran- The Cretaceous Semail ophiolite (northern Oman and the United Arab likely reflect localized partial melting of crustal material during the late stage ulites, northern Oman mountains: Geosphere, v. 11, Emirates) includes an intact thrust slice of Tethyan oceanic crust and upper of the obduction process. A minimum of 130 km shortening is recorded by res- no. 6, p. 1812–1836, doi:10.1130/GES01199.1. mantle formed above a northeast-dipping subduction zone that was the site toration of the major folds within the Bani Hamid thrust sheet, and more than of initiation of obduction.