{'fraction_non_alphanumeric': 0.018909899888765295, 'fraction_numerical': 0.0, 'mean_word_length': 5.7164179104477615, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The geological-geochemical characteristics and ore genesis of Jinchang gold deposit in Heilongjiang

Gold mineralization in Jinchang gold deposit is divided into fracture alteration type, fissure filling type and cryptoexplosion breccia type. The gold ore are divided into breccia, alteration and quartz sulfide vein types. The alteration are mainly silicification, sericitization, k feldspathization and pyritization. The mineralization is divided into early, middle and late stages. The best indicator elements combination for gold prospecting is Au As Bi Mo Co Ni. In different types of orebodies, H O isotope compositions are relatively stable, generally belong to magmatic water. Synthetizing the study of geological, geochemical characteristics in the mining area, it is considered that Jinchang gold deposit is a postmagmatic xenothermal deposit closely related to Mesozoic magmatic activity.