In 1993, a magnitude 7.5 tremor killed about 9, 000 people in the northwestern Sichuan Basin.
1993年，四川盆地西北部曾发生里氏7.5级地震，约9000人丧生。
Physical Features: Northern Mianyang is situated in the northwestern edge of Sichuan Basin.
地理特点：绵阳北部位于四川盆地的西北边缘。
The Jinmuda gold deposit is located in the southwest edge of northwestern Sichuan province, one of important part of Sichuan - Gansu -Shaanxi " gold - triangle" area.
金木达金矿床产于川西北地区阿坝把块西南缘，与中基—中酸性岩脉在空间上有密切关系。
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