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Tidal sediments analysis of Top Quartzite in east of Zarand in Kerman area | ||
| پژوهش های چینه نگاری و رسوب شناسی | ||
| Article 1, Volume 25, Issue 2, November 2009, Pages 1-18 PDF (1.51 M) | ||
| Authors | ||
| Hamed Zand Moghadam* 1; Reza Mosavi Harami2; Asadolah Mahbobi3 | ||
| 1Ph.D. Student in Sedimentology, Ferdowsi University of Mashhad | ||
| 2Professor, Department of Geology, Ferdowsi University of Mashhad | ||
| 3Associate Professor, Department of Geology, Ferdowsi University of Mashhad | ||
| Abstract | ||
| The 50 meters thick Top Quartzite sediments in Kerman area is laid between siliciclastic red beds of the Dahu Formation and carbonate deposits of the Kuhbanan Formation. Three stratigraphy sections were measured at Gazuieh, Katkuieh and Dahuieh in eastern Zarand for analysis of depositional environment. Field and petrographic studies led to identification of a conglomerate petrofacies and three sandstone petrofacies (chert arenite, quartz arenite, sublitharenite) with high textural and compositional maturity. Lithofacies analysis resulted in recognition of three coarse grain (Gcm, Gms, Gt), seven medium grain (Sp, St, Sh, Sl, Sr, Sm, Se), one fine grain (Fl) and three intermediate sand-mud lithofacies (Sr(Fl), Sr/Fl, Fl(Sr)). Structural and textural evidences as well as predominant bimodal paleo-currents in most facies show that these sediments have been deposited in the tidal flat environment. The coarse, medium and fine grain sediments are deposited in tidal channels, intertidal flats, supratidal flats, respectively. We hope represented data in the study improve the basin analysis and paleogeographical reconstruction of Cambrian sedimentation. | ||
| Keywords | ||
| Top Quartzite; Tidal flat environment; Lithofacies | ||
| Full Text | ||
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رخساره های سنگی رخساره های سنگی دانه درشت
شکل 1: تصویر صحرایی از سه بخش کوارتزیت راسی در برش داهوئیه (دید به سمت شمال غرب).
شکل 3: موقعیت جغرافیایی ناحیه مورد مطالعه.
رخساره های سنگی دانه متوسط رخساره ماسه سنگی با طبقات مورب مسطح (Sp) رخساره ماسه سنگی با طبقات مورب عدسی(St) رخساره ماسه سنگی با طبقات موازی (Sh) رخساره ماسه سنگی با طبقات مورب با زاویه کم(Sl) جدول 1: خلاصه ای از رخساره های سنگی شناسایی شده در کوارتزیت راسی و برخی از خصوصیات آنها بر اساس طبقه
Sp ماسه سنگ دارای طبقه بندی مورب مسطح Fl
رخساره ماسه سنگی توده ای (Sm) رخساره های سنگی دانه ریز رخساره گلی دارای لامیناسیون(Fl) رخساره های سنگی حدواسط ماسه ای - گلی پتروفاسیس پتروفاسیس چرت آرنایت
پتروفاسیس ساب لیت آرنایت پتروفاسیس میکروکنگلومرا تا کنگلومرا
نتیجه گیری | ||
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