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Article 799 434C1ffd2c5353ff12

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Article 799 434C1ffd2c5353ff12 ﻳﺎﻓﺘﻪ ﻫﺎي ﻧﻮﻳﻦ زﻣﻴﻦ ﺷﻨﺎﺳﻲ ﻛﺎرﺑﺮدي، ﺟﻠﺪ 15 ( ﺑﻬﺎر و ﺗﺎﺑﺴﺘﺎن 1393) 20 رﻳﺰ رﺧﺴﺎره ﻫﺎي رﺳﻮﺑﻲ و ﺟﻐﺮاﻓﻴﺎي زﻳﺴﺘﻲ دﻳﺮﻳﻨﻪ " ﮔﺬر ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن ﺑﻪ ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ( ﭘﺎﻟﺌﻮژن)" ، ﺷﺮق ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ ﻋﻠﻲ اﺻﻐﺮ ﺛﻴﺎب ﻗﺪﺳﻲ 1* ، ﻣﻴﺮاﻣﻴﺮ ﺻﻼﺣﻲ 2 و ﺑﺘﻮل رﻳﻮﻧﺪي 3 1 و 2- داﻧﺸﮕﺎه اروﻣﻴﻪ، داﻧﺸﻜﺪه ﻋﻠﻮم ﭘﺎﻳﻪ ، ﮔﺮوه زﻣﻴﻦ ﺷﻨﺎﺳﻲ -3 داﻧﺸﮕﺎه ﻓﺮدوﺳﻲ ﻣﺸﻬﺪ، داﻧﺸﻜﺪه ﻋﻠﻮم ﭘﺎﻳﻪ ، ﮔﺮوه زﻣﻴﻦ ﺷﻨﺎﺳﻲ * [email protected] درﻳﺎﻓﺖ: 24/1/92 ﭘﺬﻳﺮش : 92/7/27 ﭼﻜﻴﺪه ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ در ﺷﻤﺎل و ﺷﻤﺎل ﺷﺮﻗﻲ اﻳ ﺮان ﻗﺮار ﮔﺮﻓﺘﻪ و ﺳﺎزﻧﺪ ﻫﺎي ﭼﻬﻞ ﻛﻤﺎن و ﺧﺎﻧﮕﻴﺮان از ﺟﻤﻠﻪ ﻣﻬﻢﺗﺮﻳ ﻦ ﺳﺎزﻧﺪﻫﺎي ﭘﺎﻟﺌﻮژن اﻳ ﻦ ﺣﻮﺿﻪ ﻣﺤﺴﻮب ﻣﻲﺷﻮﻧﺪ. ﺑﺨﺶ ﻓﻮﻗﺎﻧﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن در ﻣﻜﺎن ﺑﺮش اﻟﮕﻮ ﺷﺎﻣﻞ ﺳﻨﮓ آﻫﻚ ﻫﺎي ﻣﺎﺳﻪ اي ، ﻣﺎرن و ﺳﻨﮓ آﻫﻚ اﺳﺖ ﻛﻪ ﺑﺎ ﮔﺬر ﺗﺪرﻳﺠﻲ ﺑﻪ ﺷﻴﻞ ﻫﺎي ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ﺗﺒﺪﻳﻞ ﻣﻲ ﺷﻮد . در اﻳﻦ ﻣﻄﺎﻟﻌﻪ ﺷﺮاﻳﻂ رﺳﻮﺑﮕﺬاري ﺑﺨﺶ ﻓﻮﻗﺎﻧﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن و ﻗﺎﻋﺪه ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان در ارﺗﺒﺎط ﺑﺎ ﻓﻮﻧﺎي ﮔﺎﺳﺘﺮوﭘﻮد ي و اﺛﺮات ﻓﺴﻴﻠﻲ ﻣﻮرد ﻣﻄﺎﻟﻌﻪ و ﺑﺮرﺳﻲ ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ . اﺛﺮ ﻓﺴﻴﻞ ﻫﺎي ﺷﻨﺎﺳﺎﻳﻲ ﺷﺪه ( ﺗﺎﻻﺳﻴﻨﻮﺋﻴﺪس و اﻓﻴﻮﻣﻮرﻓﺎ ) در ارﺗﺒﺎط ﺑﺎ رﺧﺴﺎره ﻫﺎي ﭘﻬﻨﻪ ﺟﺰر و ﻣﺪي و ﻻﮔﻮﻧﻲ ﺑﻮده ﻛﻪ ﺑﻴﺎﻧﮕﺮ ﺗﺸﻜﻴﻞ در ﺑﺨﺶ ﻫﺎي ﻛﻢ ﻋﻤﻖ ﺣﻮﺿﻪ اﺳﺖ . ﻫﻢ ﭼﻨﻴﻦ در اﻳﻦ ﻣﻄﺎﻟﻌﻪ ﮔﺎﺳﺘﺮوﭘﻮدﻫﺎي Ampullinid از ﺟﻨﺲ Globularia ﺑﺮاي اوﻟﻴﻦ ﺑﺎر از ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ ﺷﻨﺎﺳﺎﻳﻲ ﺷﺪﻧﺪ ﻛﻪ ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻗﺮار ﮔﻴﺮي آن ﻫﺎ در رﺧﺴﺎره ﻣﺮﺑﻮط ﺑﻪ ﻻﮔﻮن، ﻣﻲ ﺗﻮاﻧﻨﺪ ﻧﺸﺎن دﻫﻨﺪه ﺑﺨﺶ ﻫﺎي ﻛﻢ ﻋﻤﻖ ﭘﻠﺖ ﻓﺮم ﻛﺮﺑﻨﺎﺗﻪ از ﻧﻮع رﻣﭗ ﺑﺮاي ﻗﺴﻤﺖ ﻓﻮﻗﺎﻧﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن ﺑﺎﺷﻨﺪ . ﻣﻄﺎﻟﻌﻪ دﻳﺮﻳﻦ زﻳﺴﺖ ﺷﻨﺎﺳﻲ آن ﻫﺎ ﻧﺸﺎن دﻫﻨﺪ ه ﺗﻌﻠﻖ ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ ﺑﻪ ﻗﻠﻤﺮو ﺗﺘﻴﺲ ﻣﻲ- ﺑﺎﺷﺪ . اﻳﻦ ﺟﻨﺲ ﺗﺎﻛﻨﻮن از ﺑﺨﺶ ﻫﺎي ﻣﺨﺘﻠﻔﻲ از آﺳﻴﺎي ﻣﺮﻛﺰي، اروﭘﺎي ﺷﺮﻗﻲ، ﻣﺮﻛﺰي و ﻏﺮﺑﻲ ﻧﻴﺰ ﮔﺰارش ﮔﺮدﻳﺪه اﺳﺖ . ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﺣﻀﻮر اﻳﻦ ﺟﻨﺲ در ﺑﺨﺶ ﻓﻮﻗﺎﻧﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن ( ﭘﺎﻟﺌﻮﺳﻦ ﭘﺴﻴﻦ ، اﺋﻮﺳﻦ ﭘﻴﺸﻴﻦ ) ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ، ﭘﻴﺸﻨﻬﺎد ﻣﻲ ﺷﻮد ﺣﻀﻮر اﻳﻦ ﺟﻨﺲ در ﻻﻳﻪ ﻫﺎي ﺑﻪ ﺳﻦ ﺑﻌﺪ از اﺋﻮﺳﻦ ﭘﻴﺸﻴﻦ ﺑﻪ ﺳﻤﺖ اروﭘﺎ، ﻧﺸﺎن دﻫﻨﺪه ﻣﺴﻴﺮ ﻣﻬﺎﺟﺮت ﺟﻨﺲ ﻣﺰﺑﻮر از ﺷﺮق ﺑﻪ ﻏﺮب ﺑﻮده ﻛﻪ ﻣﻲ ﺗﻮان ﺣﻮﺿﻪ ﺗﻮران را ﺷﺮﻗﻲ ﺗﺮﻳﻦ ﻧﻘﻄﻪ ﺣﻀﻮر اﻳﻦ ﺗﺎﻛﺴﺎ در ﻧﻈﺮ ﮔﺮﻓﺖ ﻛﻪ در ﻃﻲ آن ﺣﻮﺿﻪ آﻧﺎﺗﻮﻟﻲ ﺗﺮﻛﻴﻪ ﻧﻴﺰ در وﺳﻂ اﻳﻦ ﻣﺴﻴﺮ ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ . واژه ﻫﺎي ﻛﻠﻴﺪي: ﺣﻮﺿﻪ رﺳﻮﺑﻲ ﻛﭙﻪ داغ، ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن، ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان، اﺛﺮات ﻓﺴﻴﻠﻲ، ﮔﺎﺳﺘﺮوﭘﻮدﻫﺎي Ampullinid ﻣﻘﺪﻣﻪ ﺣﻮﺿﻪ ي رﺳﻮﺑﻲ ﻛﭙـ ﻪ داغ در ﺷـﻤﺎ ل ﺧـﺎو ر اﻳـﺮا ن ﭘـ ﺲ از ﺑﺮشﻫﺎﻳﻲ اﺳـﺖ ﻛـﻪ در آن ﺳـﺎزﻧﺪ ﭼﻬـ ﻞﻛﻤـﺎن و ﺳـﺎزﻧﺪ ﺑﺮﺧﻮرد ﺻﻔﺤﻪ اﻳﺮان ﺑﺎ ﺻﻔﺤﻪ ﺗﻮران در ﻣﺰوزوﻳﻴﻚ ﭘﺴـﻴ ﻦ ﺧﺎﻧﮕﻴﺮان ا ز رﺧﻨﻤﻮن ﺧﻮﺑﻲ ﺑﺮﺧﻮردار ﻫﺴﺘﻨﺪ . و ﺑﺴﺘﻪ ﺷـﺪ ن درﻳـﺎ ي ﻫﺮﺳـﻴﻨﻴ ﻦ در ﺷـﻤﺎل ﺧـﺎو ر اﻳـﺮا ن ﺗ ﺸﻜﻴﻞ ﺷﺪه اﺳﺖ [11]. ﺳﻨﮓﻫﺎي رﺳـﻮﺑﻲ ﺗﺮﺷـﻴﺮي در ﻣﻮﻗﻌﻴﺖ ﺟﻐﺮاﻓﻴﺎﻳﻲ و راه ﻫﺎي دﺳﺘﺮﺳﻲ : : اﻳﻦ ﺣﻮﺿﻪ ﺷـﺎﻣﻞ رﺳـﻮﺑﺎت ﻗـﺎر هاي و درﻳـﺎﻳﻲ اﺳـﺖ ﻛـﻪ ﻣﻨﻄـ ﻘﻪ ﺳﺮﺧـ ﺲ ﺷﺎﻣﻞ ﺑﺨﺸﻲ ﺷﺮﻗﻲ ﺣﻮﺿﻪ رﺳﻮﺑﻲ رﺳﻮﺑﺎت درﻳﺎﻳﻲ ﻣﻨﺤﺼﺮ ﺑﻪ زﻣـﺎن ﭘـﺎﻟﺌﻮژن ﺑـﻮده و ﺷـﺎﻣ ﻞ ﻛﭙﻪ داغ ﻣﻲ ﺑﺎﺷﺪ . ﺑﺮاي رﺳﻴﺪن ﺑﻪ ﺑﺮش ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﺳﺎزﻧﺪﻫﺎي ﭼﻬﻞ ﻛﻤﺎن و ﺧﺎﻧﮕﻴﺮان ﻣﻲﺑﺎﺷـﺪ ]1[ . ﺑـﻪ ﻋﻠـ ﺖ ﺑﺎﻳﺴﺘﻲ در ﺟﺎده اﺻﻠﻲ ﻣﺸﻬﺪ ﺑﻪ ﺳﻤﺖ ﺳﺮﺧﺲ ﺣﺮﻛﺖ ﻓﺮﺳــﺎﻳﺶ ﻋﻤﻴــﻖ واﺣــﺪﻫﺎي ﺳــﻨﮕﻲ ﭘــﺎﻟﺌﻮژن ﻛﭙــﻪ داغ در ﻛﺮد ﺗﺎ ﺑﻪ روﺳﺘﺎي ﺷﻮرﻟﻖ رﺳﻴﺪ . ﭘﺲ از ﻃﻲ ﺣﺪود 30 اﻳﺮان، ﺳﺎزﻧﺪﻫﺎي ﭼﻬﻞ ﻛﻤﺎن و ﺧﺎﻧﮕﻴﺮان در ﻧـﻮاﺣﻲ ﺑﺴـﻴﺎ ر ﻛﻴﻠﻮﻣﺘﺮ در ﺟﻬﺖ ﺷﻤﺎل ﻏﺮب و رﺳﻴﺪن ﺑﻪ ﻧﺎودﻳـ ﺲ ﻣﺤــﺪود و ﻣﻌــﺪودي ﺑــﺎﻗ ﻲ ﻣﺎﻧــﺪه اﺳـــ ﺖ ﻛــﻪ از ﺟﻤـــ ﻠﻪ ﭼﻬﻞ ﻛﻤﺎن، ﻣﻲ ﺗﻮان ﺑﺮش ﻣﻮرد ﻣﻄﺎﻟﻌﻪ را در داﺧﻞ رﺧﻨﻤﻮن ﻫﺎي ﻛﺎﻣﻞ آن ﻣﻲﺗﻮان ﺑﻪ ﺟﻨﻮب و ﺟﻨـﻮب ﻏﺮﺑـﻲ ﻧﺎودﻳﺲ و در ﻧﻘﻄﻪ اي ﺑﻪ ﻣﺨﺘـ ﺼﺎت ﻃـ ﻮل ﺟﻐﺮاﻓﻴـ ﺎﻳﻲ دﺷﺖ ﺳﺮﺧﺲ اﺷﺎره ﻛﺮد 1[ ]. ﺑﺮش ﻧﺎودﻳﺲ ﭼﻬـ ﻞﻛﻤـﺎن ''60o 33' 16 ﺷﺮﻗﻲ و ﻋﺮض ﺟﻐﺮاﻓﻴﺎﻳﻲ ''36o 36 ' 56 واﻗﻊ در ﺟـ ـﻨﻮب ﻏـ ـﺮﺑﻲ دﺷـ ـﺖ ﺳـﺮﺧﺲ ﻧﻴـﺰ از ﺟـ ـ ﻤﻠﻪ ﺷﻤﺎﻟﻲ ﻣﻼﺣﻈﻪ ﻛﺮد ( ﺷﻜﻞ1 ). ﻳﺎﻓﺘﻪ ﻫﺎي ﻧﻮﻳﻦ زﻣﻴﻦ ﺷﻨﺎﺳﻲ ﻛﺎرﺑﺮدي، ﺟﻠﺪ 15 ( ﺑﻬﺎر و ﺗﺎﺑﺴﺘﺎن 1393) 21 ﺷﻜﻞ1. ﻧﻘﺸﻪ ﻣﻮﻗﻌﻴﺖ ﺟﻐﺮاﻓﻴﺎﻳﻲ و راه ﻫﺎي دﺳﺘﺮﺳﻲ ﺑﻪ ﻣﻨﻄﻘﻪ ﻣﻮرد ﻣﻄﺎﻟﻌﻪ روش ﻛﺎر اﺳﺎس ﻫﺎرزﻫﺎوﺳﺮ ]9[ ، اﻛﺎن و ﻫﻮﺷﮕﻮر [ 10] و اﺛـﺮ در اﻳﻦ ﺗﺤﻘﻴﻖ ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ دﻗﻴﻖ ﻣﺮز ﺑﻴﻦ ﺳﺎزﻧﺪﻫﺎي ﻓﺴﻴﻞ ﻫﺎي ﻣﻮﺟﻮد ﺑﺮ اﺳﺎس زﻳﻼﺧﺮ [ 11 ] ﺷﻨﺎﺳﺎﻳﻲ و آﻫﻜﻲ ﭼﻬﻞ ﻛﻤﺎن و ﺷﻴﻠﻲ ﺧﺎﻧﮕﻴﺮان ﻧﻤﻮﻧﻪ ﺑﺮداري ﺑﺼﻮرت ﺗﻮﺻﻴﻒ ﺷﺪهاﻧﺪ. ﺳﻴﺴﺘﻤﺎﺗﻴﻚ و ﺑﺎ ﻓﻮاﺻﻞ ﻧﺰدﻳﻚ از ﻣﺮز ﻓﻮق ﺻﻮرت ﮔﺮﻓﺖ . در اداﻣﻪ از ﻧﻤﻮﻧﻪ ﻫﺎي ﺑﺮداﺷﺖ ﺷﺪه ﺳﻨﮕﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ واﺣﺪﻫﺎي ﺳﻨﮓ ﭼﻴﻨﻪ اي ﻛﻤﺎن 22 ﻣﻘﺎﻃﻊ ﻧﺎزك ﺗﻬﻴﻪ ﮔﺮدﻳﺪ و ﻧﻤﻮﻧﻪ ﻫﺎي ﺷﻴﻠﻲ واﺣﺪﻫﺎي ﺳﻨﮓ ﭼﻴﻨﻪ اي در اﻳﻦ ﻣﻨﻄﻘـﻪ ﻣﻨﺤﺼـﺮاً ﺷـﺎﻣ ﻞ ﺳﺴﺖ ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ﻧﻴﺰ ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ ﻣﺤﺘ ﻮاي ﺳـــﺎزﻧﺪﻫﺎي ﭼﻬـــﻞﻛﻤـــﺎن و ﺧـــﺎﻧﮕﻴﺮان ﻣـــ ﻲ ﺑﺎﺷـــﻨﺪ . ﻓﺴﻴﻠﻲ ﻣﻮرد ﺷﺴﺘﺸﻮ در اﻟﻚ ﻫﺎي 50 ، 120 و 230 ﻟﻴﺘﻮاﺳﺘﺮاﺗﻴﮕﺮاﻓﻲ ﺳﺎزﻧﺪ ﭼﻬﻞﻛﻤﺎن در اﻳﻦ ﻣﻨﻄﻘﻪ ﺗﻮﺳـﻂ ﻣﻴﻜﺮون ﻗﺮار ﮔﺮﻓﺘﻨﺪ. ﺟﻬﺖ ﺷﻨﺎﺳﺎﻳﻲ رﺧﺴﺎره ﻫﺎي رﺳﻮﺑﻲ ﻣﺤﺒﻮﺑﻲ و ﻫﻤﻜﺎران [37] ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﻗﺮار ﮔﺮﻓﺘـﻪ اﺳـ ﺖ . و ﺑﺮرﺳﻲ ﺗﻐﻴﻴﺮات رﺧﺴﺎرهاي، ﺑﺮش ﻫﺎي ﻧﺎزك ﺗﻬﻴﻪ ﺷﺪه ﺑﺮ اﻳﻦ اﺳﺎس ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن در اﻳﻦ ﺑﺮش ﭼﻴﻨﻪﺷﻨﺎﺳـﻲ ﺗﻮﺳﻂ ﻣﻴﻜﺮوﺳﻜﻮپ ﭘﻼرﻳﺰان ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﻗﺮار ﮔﺮﻓﺖ . از 4 واﺣﺪ ﺳﻨﮕﻲ ﺗﺸﻜﻴﻞ ﺷﺪه اﺳﺖ ﻛﻪ ﺑـﻪ ﻃـﻮر ﻛﻠـﻲ از ﻧﺎﻣﮕﺬاري ﺳﻨﮓ ﻫﺎي ﻛﺮﺑﻨﺎﺗﻪ در ﺻﺤﺮا ﺑﻪ روش ﮔﺮاﺑﻮ [ 29 ] ﺳﻨﮓ آﻫﻚ، دوﻟﻮﻣﻴﺖ، ﻣﺎرن، ﻣﺎﺳﻪ ﺳﻨﮓ آﻫﻜـ ﻲ و ﺷـﻴ ﻞ و ﺑﺮاي ﻧﺎﻣﮕﺬار ي رﺧﺴﺎره ﻫﺎ از روش داﻧﻬﺎم [ 21 ] اﺳﺘﻔﺎده ﺗﺸﻜﻴﻞ ﺷﺪه اﺳﺖ . ﻓﻮﻧﺎي ﻓﺴﻴﻠﻲ ﻛﻪ در اﻳﻦ ﻣﻄﺎﻟﻌﻪ ﻣـﻮرد ﺷﺪه اﺳﺖ . ﺑﺮاي ﺗﻔﻜﻴﻚ دوﻟﻮﻣﻴﺖ از ﻛﻠﺴﻴﺖ در ﻣﻘﺎﻃﻊ ﺑﺮرﺳﻲ ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ، در رﺳﻮﺑﺎت اﻧﺘﻬﺎﻳﻲ واﺣﺪ ﭼﻬـﺎرم ﻧﺎزك، ﻧﻤﻮﻧﻪ ﻫﺎ ﺗﻮﺳﻂ ﻣﺤﻠﻮل آﻟﻴﺰارﻳﻦ ﻗﺮﻣﺰ و ﺑﻪ روش ا ﻳﻦ ﺳﺎزﻧﺪ و در 45 ﻣﺘﺮ اﻧﺘﻬﺎﻳﻲ اﻳﻦ ﺳﺎزﻧﺪ ﻗﺮار دارد . اﻳـﻦ دﻳﻜﺴﻮن [20] رﻧﮓ آﻣﻴﺰي ﺷﺪﻧﺪ . ﺗﻌﺪاد 5 ﻧﻤﻮﻧﻪ ﺷﻴﻠﻲ از رﺳﻮﺑﺎت ﻋﻤﺪﺗﺎً از ﺳﻨﮓ آﻫﻚﻫﺎي ﻣﺘﻮﺳـﻂ ﻻﻳـﻪ ﻛـﺮم ﺗـﺎ ﻗﺴﻤﺖ ﺗﺤﺘﺎﻧﻲ ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ ﻣﺤﺘﻮاي ﺧﺎﻛﺴﺘﺮي روﺷﻦ ﺗﺸـ ـﻜﻴﻞ ﺷـﺪ هاﻧـﺪ ﻛـﻪ ﺗﻮﺳـ ـﻂ ﺳـﻨﮓ ﻓﺴﻴﻠﻲ و ﺗﻌﻴﻴﻦ ﺷﺮاﻳﻂ رﺳﻮ ﺑﮕﺬاري ﺑﻪ روش زﭘﺪا [53] آﻫﻚ ﻫﺎي ﻣﺎﺳﻪ اي ﻧﺎزك ﺗﺎ ﻣﺘﻮﺳﻂ ﻻﻳﻪ ﻛﺮم اداﻣﻪ ﻣﻲﻳﺎﺑـﺪ ﺷﺴﺘﻪ ﺷﺪ و ﺗﻮﺳﻂ ﻣﻴﻜﺮوﺳﻜﻮپ ﺑﻴﻨﻮﻛﻮﻻر ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ( ﺷــﻜﻞ A ،2 ). اﺛﺮﻓﺴــﻴﻞﻫــﺎ در ﻣــﺮز ﻣﺸــﺘﺮك اﻳــﻦ دو ﻗﺮار ﮔﺮﻓﺖ . ﺟﻬﺖ ﺑﺮرﺳﻲ ﺷﺮاﻳﻂ ﺗﺸﻜﻴﻞ رﺧﺴﺎره ﻫﺎي ﻟﻴﺘﻮﻟﻮژي ﺑﻪ ﻓﺮاواﻧ ﻲ ﻣﺸﺎﻫﺪه ﻣﻲﺷـﻮ د . ﻓﻮﻧـﺎي ﮔﺎﺳـﺘﺮوﭘﻮد ﺷﻨﺎﺳﺎﻳﻲ ﺷﺪه، اﻳﻦ رﺧﺴﺎره ﻫﺎ ﺑﺎ رﺧﺴﺎره ﻫﺎي اﺳﺘﺎﻧﺪارد ﻧﻴﺰ در ﺑﺨﺶ اﻧﺘﻬﺎﻳﻲ ﺳﻨﮓ آﻫـﻚ و ﻫـ ﻢﭼﻨـﻴﻦ در ﺳـﻨﮓ ﻓﻠﻮﮔﻞ 8[ ] ﻣﻘﺎﻳﺴﻪ ﺷﺪهاﻧﺪ. ﻓﻮﻧﺎي ﮔﺎﺳﺘﺮوﭘﻮدي ﻧﻴﺰ ﺑﺮ آﻫﻚ ﻫﺎي ﻣﺎﺳﻪ اي ﺑﺎﻻي آن ﮔﺴﺘﺮده ﺷﺪهاﻧـ ﺪ . ﻳـﻚ ﻣﻴـﺎن ﻳﺎﻓﺘﻪ ﻫﺎي ﻧﻮﻳﻦ زﻣﻴﻦ ﺷﻨﺎﺳﻲ ﻛﺎرﺑﺮدي، ﺟﻠﺪ 15 ( ﺑﻬﺎر و ﺗﺎﺑﺴﺘﺎن 1393) 22 ﻻﻳﻪ از ﻣﺎرن ﻗﺮﻣﺰ رﻧﮓ ﺑﻪ ﺿﺨﺎﻣﺖ 9 ﺳـﺎﻧﺘﻲ ﻣﺘـﺮ ﺑـﺮ روي ﻧﺨﻮدي رﻧﮓ ( ﺷـﻜﻞ C ، 2 ) ﻗـﺮار دارﻧـﺪ ﻛـﻪ در ﻧﻬﺎﻳـﺖ ﺑـﻪ اﻳﻦ آﻫﻚ ﻫﺎي ﻣﺎﺳﻪ اي ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ ( ﺷﻜﻞ B ، 2 ). ﭘﺲ ﺷﻴﻞ ﻫﺎي ﺳﺒﺰ زﻳﺘﻮﻧﻲ ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ﺧﺘﻢ ﻣﻲ ﺷـﻮد ﻛـﻪ از اﻳﻦ ﻣﻴﺎن ﻻﻳﻪ ﻣﺎرﻧﻲ ﻣﺠـﺪداً آﻫـﻚ ﻫـﺎي ﻣﺎﺳـﻪ اي و در ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﺗﺮﻛﻴـﺐ ﺳـﻨﮓ ﺷﻨﺎﺳـﻲ ﺧـﻮد، رﻳﺨـﺖ ﺷﻨﺎﺳـﻲ اداﻣﻪ ﺳﻨﮓ آﻫﻚ و ﺳـﻨﮓ آﻫـﻚ ﻫـﺎي دوﻟـﻮﻣﻴﺘﻲ زرد ﺗـﺎ ﭘﺴﺖ ﺗﺮ و ﺗﭙﻪ ﻣﺎﻫﻮري را ﺑﻪ وﺟﻮد آورده اﺳﺖ . ﺷﻜﻞ 2 ) ﺗﺼﺎوﻳﺮ ﺻﺤﺮاﻳﻲ از ﺑﺨﺶ اﻧﺘﻬﺎﻳﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن : A ) ﻧﻤﺎي ﻛﻠﻲ از ﺳﻨﮓ آﻫﻜﻬﺎي ﺧﺎﻛﺴﺘﺮي رﻧﮓ ﻗﺴﻤﺖ اﻧﺘﻬﺎﻳﻲ ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن . B ) ﻣﺎرن ﻗﺮﻣﺰ رﻧﮓ ﻛﻪ ﺑﻪ ﺿﺨﺎﻣﺖ 9 ﺳﺎﻧﺘﻲ ﻣﺘﺮ دﻳﺪه ﻣﻲ ﺷﻮد . C ) آﻫﻜﻬﺎي دوﻟﻮﻣﻴﺘﻲ ﺑﺨﺶ اﻧﺘﻬﺎﻳﻲ ﻛﻪ ﺑﻪ ﺷﻴﻞ ﻫﺎي ﺧﺎﻧﮕﻴﺮان ﻣﻨﺘﻬﻲ ﻣﻲ ﮔﺮدد. ﻣﺠﻤﻮﻋﻪ رﻳﺰ رﺧﺴﺎره ﻫﺎي ﺳﻨﮕﻲ اﺳﺖ و ﺑﻪ ﺻﻮرت ﺗﻚ ﺑﻠﻮر و داراي ﺧﺎﻣﻮﺷﻲ ﻣﺴﺘﻘﻴﻢ ﺗﺎ رﻳﺰ رﺧﺴﺎره ﻫﺎي رﺳﻮﺑﻲ ﻣﻨﻌﻜﺲ ﻛﻨﻨﺪه ﺷﺮاﻳﻂ ﺣﺎﻛﻢ ﺑﺮ ﻛﻤﻲ ﻣﻮﺟﻲ ﻫﺴﺘﻨ ﺪ . ﺪ ﻣﺤﻴﻂ رﺳﻮﺑﻲ ﻫﺴﺘﻨﺪ و ﺑﻪ ﻫﻤﻴﻦ دﻟﻴﻞ ﻣﻄﺎﻟﻌﻪ آن ﻫﺎ در رﺧﺴﺎره B ( دوﻟﻮ ﻣﺎدﺳﺘﻮن ) ) اﻳﻦ ﻣﻘﺎﻟﻪ ﻣﻨﺠﺮ ﺑﻪ ﺗﻌﻴﻴﻦ ﺷﺮاﻳﻂ ﭘﺎﻟﺌﻮ اﻛﻮﻟﻮژﻳﻜﻲ و اﻳﻦ زﻳﺮرﺧﺴﺎره ﺣﺎوي دوﻟﻮﻣﻴﺖ رﻳﺰﺑﻠﻮردر اﻧﺪازه 20 ﺗﺎ 30 30 ﭘﺎﻟﺌﻮﺑﻴﻮژﺋﻮﮔﺮاﻓﻴﻜﻲ ﺷﺪه اﺳﺖ[ ]12 . ]12 ﻣﻴﻜﺮون در زﻣﻴﻨﻪ ﻣﺎﺗﺮﻳﻜﺲ آﻫﻜﻲ اﺳﺖ ( ﺷﻜﻞ D ، 3 ). ﻣﻄﺎﻟﻌﻪ 22 ﻣﻘﻄﻊ ﻧﺎزك ﺗﻬﻴﻪ ﺷﺪه از رﺳﻮﺑﺎت اﻧﺘ ﻬﺎﻳﻲ اﻳﻦ رﺧﺴﺎره در ﺳﻄﺢ زﻣﻴﻦ ﺑﻪ ﺻﻮرت ﻛﻠﺴﻲ ﻟﻮﺗﺎﻳﺖ ﻫﺎي ﺳﺎزﻧﺪ ﭼﻬﻞ ﻛﻤﺎن و 5 ﻧﻤﻮﻧﻪ ﺷﻴﻠﻲ از ﻗﺴﻤﺖ ﺗﺤﺘﺎﻧﻲ ﻧﺎزك ﻻﻳﻪ ﺧﺎﻛﺴﺘﺮي روﺷﻦ دﻳﺪه ﻣﻲ ﺷﻮد . ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان در ﻣﺮز اﻳﻦ دو ﺳﺎزﻧﺪ و ﻣﻘﺎﻳﺴﻪ رﺧﺴﺎره- ﻫﺎي ﺷﻨﺎﺳﺎﻳﻲ ﺷﺪه ﺑﺎ رﺧﺴﺎره ﻫﺎي اﺳﺘﺎﻧﺪارد وﻳﻠﺴﻮن رﺧﺴﺎره C ( ﭘﻜﺴﺘﻮن ﭘﻠﻮﺋﻴﺪي ) ) ( 1975 ) و ﻓﻠﻮﮔﻞ 8[ ] ﻣﻨﺠﺮ ﺑﻪ ﺷﻨﺎﺳﺎﻳﻲ 4 رﺧﺴﺎره اﻳﻦ رﺧﺴﺎره داراي 40 % ﭘﻠﻮﺋﻴﺪ در اﻧﺪازه 0./2 ﺗﺎ 0./3 0./3 ﻛﺮﺑﻨﺎﺗﻪ و ﻳﻚ رﺧﺴﺎره آواري ( ﺷﻴﻞ ) ﺷﺪه اﺳﺖ ﻛﻪ ﻣﻴﻠﻲ ﻣﺘﺮ اﺳﺖ . ﭘﻠﻮﺋﻴﺪﻫﺎ داراي ﺟﻮرﺷﺪﮔﻲ ﺧﻮب و ﺷﻜﻞ وﻳﮋﮔﻲ ﻫﺎي ﻫﺮ ﻳﻚ از آن ﻫﺎ ﺑﻪ ﺷﺮح زﻳﺮ اﺳﺖ : ﻳﻜﻨﻮاﺧﺘﻲ ﻫﺴﺘﻨﺪ ( ﺷﻜﻞ B ، 3 ). زﻣﻴﻨﻪ ﺑﻪ ﻃﻮر ﻛﺎﻣﻞ از ﮔﻞ آﻫﻜﻲ ﺗﺸﻜﻴﻞ ﺷﺪه اﺳﺖ . اﻳﻦ رﺧﺴﺎره در ﺳﻄﺢ زﻣﻴﻦ رﺧﺴﺎره A ( ﻣﺎدﺳﺘﻮن ﻛﻮارﺗﺰ دار ) ) ﺑﻪ ﺻﻮرت ﻛﻠﺴﻲ ﻟﻮﺗﺎﻳﺖ ﻫﺎي ﻧﺎزك ﻻﻳﻪ ﺑﺎ رﻧﮓ ﺧﺎﻛﺴﺘﺮي ﻓﺮاواﻧﻲ داﻧﻪ ﻫﺎي ﻛﻮارﺗﺰ ﻣﻮﺟﻮد در اﻳﻦ رﺧﺴﺎره ﺑﻪ ﺣﺪود ﻣﺘﻤﺎﻳﻞ ﺑﻪ ﻛﺮم ﻗﺎﺑﻞ ﻣﺸﺎﻫﺪه اﺳﺖ . 20 % ﻣﻲ رﺳﺪ ( ﺷﻜﻞA ، 3 ) ﻛﻪ در زﻣﻴﻨﻪ ﮔﻞ آﻫﻜﻲ ﭘﺮاﻛﻨﺪﮔﻲ دارﻧﺪ . اﻧﺪازه داﻧﻪ ﻫﺎي ﻛﻮارﺗﺰ در ﺣﺪ ﺳﻴﻠﺖ ﻳﺎﻓﺘﻪ ﻫﺎي ﻧﻮﻳﻦ زﻣﻴﻦ ﺷﻨﺎﺳﻲ ﻛﺎرﺑﺮدي، ﺟﻠﺪ 15 ( ﺑﻬﺎر و ﺗﺎﺑﺴﺘﺎن 1393) 23 رﺧﺴﺎره D ( ﭘﻜﺴﺘﻮن ااﺋﻴﺪي ﻛﻮارﺗﺰدار) رﺧﺴﺎره دﻳﺪه ﻣﻲ ﺷﻮد . ﺑﺮﺧﻲ از اﻳﻦ ﺣﺠﺮات ﺗﻮﺳﻂ اﻳﻦ رﺧـ ﺴﺎره از 30 % ااﺋﻴﺪ ﺑﺎ ـﻗ ﻄﺮ ﻣﺘﻮﺳـ ﻂ ﺣﺪود 2 ﺳﻴﻠﻴﺲ ﭘﺮ ﺷﺪه اﺳﺖ و ﺑﻘﻴﻪ ﺑﻪ ﺻﻮرت ﺗﺨﻠﺨﻞ درون ﻣﻴﻠﻲ ﻣﺘﺮ ﺗﺸﻜﻴﻞ ﺷﺪه اﺳﺖ . ااﺋﻴﺪﻫﺎ ﺣﺎﻟﺖ اﻧﺤﻼﻟﻲ داﺷﺘﻪ داﻧﻪ اي ﺑﺎﻗﻲ ﻣﺎﻧﺪه اﻧﺪ ( ﺷﻜﻞ C ، 3 ). و ﺗﻨﻬﺎ ﻗﺎﻟﺐ آن ﻫﺎ ﺑﺎﻗﻲ ﻣﺎﻧﺪه اﺳﺖ ﺑﻪ ﻫﻤﻴﻦ دﻟﻴﻞ ﻓﺎﺑﺮﻳﻚ رﺧﺴﺎره E ﺷﻴﻠﻲ آن ﻫﺎ ﻗﺎﺑﻞ ﺷﻨﺎﺳﺎﻳﻲ ﻧﻴﺴﺖ . اﻳﻦ رﺧﺴﺎره در ﺻﺤﺮا ﺑﻪ اﻳﻦ رﺧﺴﺎره ﻛﻪ ﻣﺮﺑﻮط ﺑﻪ ﻗﺴﻤﺖ ﺗﺤﺘﺎﻧﻲ ﺳﺎزﻧﺪ ﺧﺎﻧﮕﻴﺮان ﺻﻮرت ﻛﺎﻟﻜﺎرﻧﺎﻳﺖ ﻫﺎي ا اﻟﻴﺘﻲ ﺑﺎ ﻃﺒﻘﻪ ﺑﻨﺪي ﻣﻮرب دﻳﺪه ﻣﻲ ﺑﺎﺷﺪ از ﺷﻴﻞ ﻫﺎي آﻫﻜﻲ ﺳﺒﺰ روﺷﻦ ﺗﺎ ﺳﺒﺰ زﻳﺘﻮﻧﻲ ﻣﻲ ﺷﻮد . ﺣﻔﻆ ﺷﺪﮔﻲ ﺳﺎﺧﺘﻤﺎن داﺧﻠﻲ ااﺋﻴﺪﻫﺎ ﻧﺸﺎن ﺗﺸﻜﻴﻞ ﺷﺪه ا ﺳﺖ ﻛﻪ ﺣﺎوي ﻓﺮاﻣﻴﻨﻴﻔﺮﻫﺎي ﭘﻼﻧﻜﺘﻮن دﻫﻨﺪه ﺗﺮﻛﻴﺐ ﻛﺎﻧﻲ ﺷﻨﺎﺳﻲ ﭘﺎﻳﺪار ( ﻛﻠﺴﻴﺖ ﺑﺎ ﻣﻨﻴﺰﻳﻢ Globanomalina ، Chiloguembelina ، Acarinina ، ﭘﺎﻳﻴﻦ ) و از ﺑﻴﻦ رﻓﺘﻦ اﻳﻦ ﺳﺎﺧﺘﻤﺎن ﻫﺎ ﻣﻲ ﺗﻮاﻧﺪ ﺣﺎﻛﻲ از Pseudohastigerina ، Parasobbotina و Subbotina ﺗﺮﻛﻴﺐ ﻧﺎﭘﺎﻳﺪار ( آراﮔﻮﻧﻴﺖ ﻳﺎ ﻛﻠﺴﻴﺖ ﺑﺎ ﻣﻨﻴﺰﻳﻢ ﺑﺎﻻ ) آن ﻫﺎ اﺳﺖ .
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