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Spectral analysis and modeling of microcyclostratigraphy in late Paleozoic glaciogenic rhythmites, Paraná Basin, Brazil
We investigate the depositional time scale of lithological couplets (fine sandstone/siltstone–siltstone/mudstone) from two distinctive outcrops of Permo‐Carboniferous glacial rhythmites in the Itararé Group (Paraná Basin, Brazil). Resolving the fundamental issue of time scale for these rhythmites is...
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| Published in: | Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2011-09, Vol.12 (9), p.np-n/a |
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| container_issue | 9 |
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| container_title | Geochemistry, geophysics, geosystems : G3 |
| container_volume | 12 |
| creator | Franco, Daniel R. Hinnov, Linda A. Ernesto, Marcia |
| description | We investigate the depositional time scale of lithological couplets (fine sandstone/siltstone–siltstone/mudstone) from two distinctive outcrops of Permo‐Carboniferous glacial rhythmites in the Itararé Group (Paraná Basin, Brazil). Resolving the fundamental issue of time scale for these rhythmites is important in light of recent evidence for paleosecular variation measured in these sequences. Spectral analysis and tuning of high‐resolution gray scale scans of sediment core microstratigraphy, which comprises pervasive laminations, reveal a comparable spectral content at both localities, with a frequency suite interpreted as that of short‐term climate variability of Recent and modern times. This evidence for decadal‐ to centennial‐scale deposition of these lithological couplets is discussed in light of the ‘varvic’ character, i.e., annual time scale that was previously assumed for the rhythmites.
Key Points
Depositional time scale of late Paleozoic glacial rhythmites, Parana Basin, Brazil
Modeling of microcyclostratigraphy of lithological couplets
Importance of resolving the time scale due to recent suggested PSV record |
| doi_str_mv | 10.1029/2011GC003602 |
| format | article |
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Key Points
Depositional time scale of late Paleozoic glacial rhythmites, Parana Basin, Brazil
Modeling of microcyclostratigraphy of lithological couplets
Importance of resolving the time scale due to recent suggested PSV record</description><identifier>ISSN: 1525-2027</identifier><identifier>EISSN: 1525-2027</identifier><identifier>DOI: 10.1029/2011GC003602</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Brazil ; Carboniferous ; Climate variability ; Geological time ; Geophysics ; glacial rhythmites ; Hydrology ; Itararé Group ; laminated sediment ; Mathematics ; Paleozoic ; Paraná Basin ; Permo-Carboniferous ; Sandstone ; Sedimentation & deposition ; Spectral analysis</subject><ispartof>Geochemistry, geophysics, geosystems : G3, 2011-09, Vol.12 (9), p.np-n/a</ispartof><rights>Copyright 2011 by the American Geophysical Union.</rights><rights>Copyright 2011 by American Geophysical Union</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4329-e9fa4e417094ae6043b7ce0a56d54d657837ecdc09a83fc1ea16eee0695214cc3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2011GC003602$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2011GC003602$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,11562,27924,27925,46052,46476</link.rule.ids><linktorsrc>$$Uhttps://onlinelibrary.wiley.com/doi/abs/10.1029%2F2011GC003602$$EView_record_in_Wiley-Blackwell$$FView_record_in_$$GWiley-Blackwell</linktorsrc></links><search><creatorcontrib>Franco, Daniel R.</creatorcontrib><creatorcontrib>Hinnov, Linda A.</creatorcontrib><creatorcontrib>Ernesto, Marcia</creatorcontrib><title>Spectral analysis and modeling of microcyclostratigraphy in late Paleozoic glaciogenic rhythmites, Paraná Basin, Brazil</title><title>Geochemistry, geophysics, geosystems : G3</title><addtitle>Geochem. Geophys. Geosyst</addtitle><description>We investigate the depositional time scale of lithological couplets (fine sandstone/siltstone–siltstone/mudstone) from two distinctive outcrops of Permo‐Carboniferous glacial rhythmites in the Itararé Group (Paraná Basin, Brazil). Resolving the fundamental issue of time scale for these rhythmites is important in light of recent evidence for paleosecular variation measured in these sequences. Spectral analysis and tuning of high‐resolution gray scale scans of sediment core microstratigraphy, which comprises pervasive laminations, reveal a comparable spectral content at both localities, with a frequency suite interpreted as that of short‐term climate variability of Recent and modern times. This evidence for decadal‐ to centennial‐scale deposition of these lithological couplets is discussed in light of the ‘varvic’ character, i.e., annual time scale that was previously assumed for the rhythmites.
Key Points
Depositional time scale of late Paleozoic glacial rhythmites, Parana Basin, Brazil
Modeling of microcyclostratigraphy of lithological couplets
Importance of resolving the time scale due to recent suggested PSV record</description><subject>Brazil</subject><subject>Carboniferous</subject><subject>Climate variability</subject><subject>Geological time</subject><subject>Geophysics</subject><subject>glacial rhythmites</subject><subject>Hydrology</subject><subject>Itararé Group</subject><subject>laminated sediment</subject><subject>Mathematics</subject><subject>Paleozoic</subject><subject>Paraná Basin</subject><subject>Permo-Carboniferous</subject><subject>Sandstone</subject><subject>Sedimentation & deposition</subject><subject>Spectral analysis</subject><issn>1525-2027</issn><issn>1525-2027</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp90c9u1DAQBvAIgURpufEAFhc4NNT_Ex_ZVRugVYsEiKM1OLO7Lk682FnR9G14Fl4MV4tQ1QOn-Q6_bw4zVfWC0TeMcnPCKWPdklKhKX9UHTDFVc0pbx7fy0-rZzlfU8qkUu1BdfNpi25KEAiMEObscwk9GWKPwY9rEldk8C5FN7sQc4GTXyfYbmbiRxJgQvIRAsbb6B1ZB3A-rnEsOW3maTP4CfNxEQnG37_IArIfj8kiwa0PR9WTFYSMz__Ow-rL2enn5bv64qp7v3x7UYMU3NRoViBRsoYaCaipFN8ahxSU7pXstWpa0aDrHTXQipVjCEwjItVGcSadE4fVq_3ebYo_dpgnO_jsMAQYMe6yNVRKw5XSRb7-r2RaSW1kK1ShLx_Q67hL5YDZtm0raEF3-_ge_fQBZ7tNfoA0W0bt3bPs_WfZrutOmWlNKdX7ks8T3vwrQfpudSMaZb9edlZe0mbx4ezcnos_VJ-ZJA</recordid><startdate>201109</startdate><enddate>201109</enddate><creator>Franco, Daniel R.</creator><creator>Hinnov, Linda A.</creator><creator>Ernesto, Marcia</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>3V.</scope><scope>7TG</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2O</scope><scope>M2P</scope><scope>MBDVC</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope></search><sort><creationdate>201109</creationdate><title>Spectral analysis and modeling of microcyclostratigraphy in late Paleozoic glaciogenic rhythmites, Paraná Basin, Brazil</title><author>Franco, Daniel R. ; Hinnov, Linda A. ; Ernesto, Marcia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4329-e9fa4e417094ae6043b7ce0a56d54d657837ecdc09a83fc1ea16eee0695214cc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Brazil</topic><topic>Carboniferous</topic><topic>Climate variability</topic><topic>Geological time</topic><topic>Geophysics</topic><topic>glacial rhythmites</topic><topic>Hydrology</topic><topic>Itararé Group</topic><topic>laminated sediment</topic><topic>Mathematics</topic><topic>Paleozoic</topic><topic>Paraná Basin</topic><topic>Permo-Carboniferous</topic><topic>Sandstone</topic><topic>Sedimentation & deposition</topic><topic>Spectral analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Franco, Daniel R.</creatorcontrib><creatorcontrib>Hinnov, Linda A.</creatorcontrib><creatorcontrib>Ernesto, Marcia</creatorcontrib><collection>Istex</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest research library</collection><collection>ProQuest Science Journals</collection><collection>Research Library (Corporate)</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Geochemistry, geophysics, geosystems : G3</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Franco, Daniel R.</au><au>Hinnov, Linda A.</au><au>Ernesto, Marcia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spectral analysis and modeling of microcyclostratigraphy in late Paleozoic glaciogenic rhythmites, Paraná Basin, Brazil</atitle><jtitle>Geochemistry, geophysics, geosystems : G3</jtitle><addtitle>Geochem. Geophys. Geosyst</addtitle><date>2011-09</date><risdate>2011</risdate><volume>12</volume><issue>9</issue><spage>np</spage><epage>n/a</epage><pages>np-n/a</pages><issn>1525-2027</issn><eissn>1525-2027</eissn><abstract>We investigate the depositional time scale of lithological couplets (fine sandstone/siltstone–siltstone/mudstone) from two distinctive outcrops of Permo‐Carboniferous glacial rhythmites in the Itararé Group (Paraná Basin, Brazil). Resolving the fundamental issue of time scale for these rhythmites is important in light of recent evidence for paleosecular variation measured in these sequences. Spectral analysis and tuning of high‐resolution gray scale scans of sediment core microstratigraphy, which comprises pervasive laminations, reveal a comparable spectral content at both localities, with a frequency suite interpreted as that of short‐term climate variability of Recent and modern times. This evidence for decadal‐ to centennial‐scale deposition of these lithological couplets is discussed in light of the ‘varvic’ character, i.e., annual time scale that was previously assumed for the rhythmites.
Key Points
Depositional time scale of late Paleozoic glacial rhythmites, Parana Basin, Brazil
Modeling of microcyclostratigraphy of lithological couplets
Importance of resolving the time scale due to recent suggested PSV record</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2011GC003602</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 1525-2027 |
| ispartof | Geochemistry, geophysics, geosystems : G3, 2011-09, Vol.12 (9), p.np-n/a |
| issn | 1525-2027 1525-2027 |
| language | eng |
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| source | Open Access: Wiley-Blackwell Open Access Journals |
| subjects | Brazil Carboniferous Climate variability Geological time Geophysics glacial rhythmites Hydrology Itararé Group laminated sediment Mathematics Paleozoic Paraná Basin Permo-Carboniferous Sandstone Sedimentation & deposition Spectral analysis |
| title | Spectral analysis and modeling of microcyclostratigraphy in late Paleozoic glaciogenic rhythmites, Paraná Basin, Brazil |
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