About features of Doross basites complex (Kodar-Udokan zone) formation

The Upper-Proterozoic doross basites formatiom has been occurred during continental diffused spreading. This has been proved by petrochemical characteristics and distribution of rare-Earth elements in gabbros. From MgO - FeO* -A12O3 diagram the doross gabbros comply -with continental basites. The distribution of rare-Earth elements in doross gabbros is similar to continental basites.