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معدن یا همان کانسار آهن میتواند نزدیک سطح تا عمق حدود ۱۰۰۰متر یا در اعماق زمین تا عمق حدود ۲۰۰۰متر، قرار گرفته باشد. این عمق قرارگیری و همچنین شکل و عیار کانسار، در نحوه حفاری معادن سنگ آهن بسیار تأثیرگذار هستند. پس از شناسایی معدن، روش حفاری و استخراج این سنگهای معدنی تعیین میشود که حفاری روباز و حفاری زیرزمینی، دو روش اصلی برای استخراج سنگ مع...
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