Geochemical and geochronological constraints on the tectonic setting of the Xinlin ophiolite, northern Great Xing’an Range, NE China

The Xinlin ophiolite, located in the Great Xing’an Range domain of the Central Asian Orogenic Belt (CAOB), is considered to represent a fragment of an oceanic plate. The ophiolite consists of several discontinuous blocks composed dominantly of serpentinized ultramafic rocks with subordinate cumulate gabbros, basalts, and diabase dikes, which are intruded by younger leucogranite dikes. Here we characterize the geochemical features and formation...