Electrical conductivities of quartz , olivine , dunite , iherzolite , pyroxenite , and megaaugite were measured by virtue of the new system ; whereas , the electrical conductivity of gabbro was measured by means of the old one . an interesting outgrowth of the present study is the measurement of the complex impedance of a series of quartz plates with different orientations 石英(人造水晶) 、橄欖石、純橄欖巖、輝石巖、二輝橄欖巖、巨晶輝石的電導率測量是在新的測量系統下獲得的,而輝長巖的電導率測量是基于lcr儀為測量儀器的測試系統下獲得的。
There are three genetic types of mineral deposits in the beiya ore district : cu - au polymetallic deposits related to alkaline porphyries , comprising porphyritic cu - au deposits and polymetallic skarn deposits related to quartz - albite porphyry and quartz - k - feldspar porphyry ; fe - au deposits related to gabbro or basalt magma , consisting of magmatic fe - au deposits and sedimentary polymetallic deposits formed in caves and lakes ; and palaeo - placers formed at the weathering surface , in lakes and in karsts 北衙金礦有3種成因不同的礦床:與堿性斑巖有關的銅金多金屬礦,包括與石英鈉長斑巖和石英正長斑巖有關的斑巖型銅金礦床和矽卡巖型多金屬礦床;與輝長玄武巖漿有關的鐵金礦床,包括熔漿型鐵金礦床和噴流沉積型多金屬礦床,后者又有洞穴和湖相沉積環境之分;及古砂礦,有古風化殼型砂礦、河湖相古砂礦和洞穴沉積古砂礦。
Qimanyuter ophiolite melange crops out 1 - 3 km in width and extends ew - nee about 50 km , parallels to the kunlun mountains . qimanyuter ophiolite melange is composed mainly of serpentinite ( metapyrolite ) , peridotite , bedded gabbro , grbbro , diabase sheet and pillow - like and massif basalt as well . associated sedimentary rocks with this ophiolite melange include silicalite , dark gray silicalite and thin - bedded limestone 該混雜巖帶所包含的主要巖性單位包括:蛇紋巖(變輝橄巖) 、橄欖輝石巖、層狀輝長巖、輝長巖、輝綠巖席、枕狀、塊狀、杏仁狀玄武巖,與之共生的沉積巖為紫紅色硅質巖、深灰色硅質巖、薄層灰巖等。