نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم زمین دانشگاه بیرجند

2 استادیار دانشگاه بیرجند

3 استاد بخش علوم زمین دانشگاه بیرجند

4 گروه زمین شناسی دانشگاه تحصیلات تکمیلی زنجان

5 گروه دینامیک لیتوسفر انستیتو علوم زمین جاومه المرا بارسلون اسپانیا

چکیده

چکیده
تعیین هندسه و ساز و کار چین خوردگی در فرو افتادگی دزفول به دلیل دربرگرفتن بخش عمده ذخایر هیدروکربنی ایران و همچنین جایگاه این حوضه در روند تکامل ساختاری کمربند چین - رانده زاگرس، از اهمیت حیاتی برخوردار است. در این پژوهش، چگونگی تکامل هندسی تاقدیس جریک واقع در شمال خاوری فروافتادگی دزفول، بر اساس اطلاعات ژئوفیزیکی حاصل از لرزه نگاری سه بعدی، داده های حفاری چاه که توسط شرکت ملی نفت ایران تهیه و در اختیار قرارگرفته است، تفسیر تصاویر ماهواره ای و داده‌های حاصل از برداشت های صحرایی مورد بررسی قرار گرفته است. بر اساس برش های ساختاری رسم شده، تغییرات هندسی چین در عرض و در راستای امتداد تاقدیس مورد مطالعه قرار گرفته است. تبخیری‌های سازند گچساران به عنوان افق جدایش بالایی، سبب تغییرات هندسی و سبک دگرریختی در امتداد محور تاقدیس شده است. در منطقه دماغه تاقدیس، ساز و کار جدایشی با هندسه متقارن و مدور در سطح دیده می شود و بخش میانی تاقدیس، سازوکار چین خوردگی جدایشی گسلیده (Faulted detachment fold) را نشان می دهد.

کلیدواژه‌ها

موضوعات

کتابنگاری
خرازی‎زاده، ن.، الماسیان، م. و شرکتی، ش.، 1391-  تحلیل جنبشی هندسه چین‎خوردگی در تاقدیس آغاجاری (فروافتادگی دزفول)، ایران، فصلنامه علوم زمین، شماره 86، صص. 261 تا 272.
مطیعی، ه.، 1372- چینه‎شناسی زاگرس، انتشارات سازمان سازمان زمین‎شناسی و اکتشافات معدنی کشور.
 
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