| Gold, molybdenum and tungsten contents of deep source xenoliths of the different types from Wanquan of Hebei Province and peridotitic xenoliths from Liaoning Province and Jilin Province in the North margin of North China platform have been systematically analyzed. In this paper, by ideas and methods of comparative Geology of mineral deposits on the basis of systematic analysis of relationships for the gold content with major element, trace element, REE and PGE to the peridotitic xenoliths and comparative research on the distribution of gold, molybdenum and tungsten contents of north margin with south margin, eastern with western of North China platform and deep source xenoliths of the different types, some conclusions can be follows:1. In the mantle peridotite xenoliths, golden may be mainly in the clinoenstenite. While CaO content of peridotite xenoliths exceeds 2%, peridotite xenoliths have a relatively large component gold. Gold contents of the mantle peridotite are concern with the degree of partial melting of mantle.2. Ore forming elements in mantle peridotite xenoliths on the North China platform north margin (Damaping of Heibei Province ) and South margin (Linqu of Shandong Province) are inhomogeneous. It is obvious that contents of nickel, iron in mantle peridotite xenoliths on the North China platform north margin are higher than on the North China platform South margin's and gold, molybdenum contents in mantle peridotite xenoliths on the North China platform South margin are higher than on the North China platform north margin's. The contents of Ni, Fe, Au, Mo of the samples mantle-derived xenoliths from southern margin and northern margin of Northern China ( Shandong Province and Liaoning Province) are coupled with the basic metallogenic Provinces. It is considered that the Ni, Fe, Au, Mo contents of mantle-derived xenoliths may be indicator the distributions of concentrated districts in the crust. The contents of Ni, Fe, Au, Mo in mantle peridotite xenoliths are controlled degree of partial melting of mantle and their difference of geochemical properties.3. The lithosphere mantle on the north China platform north margin is inhomogeneous spatially in the degree of partial melting and the metasomatos. In which difference of the former is not obvious, but it is concern with gold content in lithosphere mantle. The difference of the latter is quietly bright, but it is not concern with gold content in lithosphere mantle.4. The order of Au concentrates of xenoliths from deep source is: pyroxenolites≥pyroxenite xenolith> mafic granulite xenolith≥basalt> felsic granulite xenolith. The order of Mo concentrates of xenoliths from deep source is: mafic granulite xenolith, basalt>felsic granulite xenolith> pyroxenolites≥pyroxenite xenolith. The order of W concentrates of xenoliths from deep source is: felsic granulite xenolith > mafic granulite xenolith, basalt > pyroxenolites≥pyroxenite xenolith. With evolvement and differentiation of mantle and crust. Au is rich in lithosphere mantle, Mo is rich in lower crust, and W is rich in middle and high crust. It caused Au, Mo and W deposits and their deposits-concentrated districts in crust.5. Gold content of mafic granulite xenolith is higher than gold content of basalt indicate that erupt of gold mineralization in Mesozoic in Eastern China is concern with depleteing of lithosphere mantle of rich gold. Molybdenum content of mafic granulite xenolith is higher than molybdenum content of basalt indicate that erupt of molybdenum mineralization in Mesozoic in Eastern China is concern with magmatism in the period of depleting of lithosphere mantle.6. The difference of gold, molybdenum and tungsten content among xenoliths from deep source and their host basalt, among mantle peridotite xenoliths from different locations and difference distribution of gold, molybdenum and tungsten districts in China is related to the mantle source of lithospheric mantle, the Crust evolution and the geochemical properties of gold, molybdenum and tungsten.
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