MOLLUSCAN TAPHONOMIC PATTERNS BELOW THE SEDIMENT-WATER INTERFACE IN FRESHWATER SHALLOW LAKES FROM THE SOUTHEASTERN PAMPA PLAIN, ARGENTINA
Molluscan taphonomic patterns below the sediment-water interface in three freshwater shallow lakes from the Southeastern Pampa Plain, Argentina (Nahuel Rucá, Las Mostazas, and Los Carpinchos), were analyzed in order to explore the taphonomic alteration suffered by mollusks with depth and determine i...
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| Veröffentlicht in: | Palaios 2017-08, Vol.32 (8), p.528-542 |
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| creator | CRISTINI, PAULA ANDREA FRANCESCO, CLAUDIO GERMÁN DE |
| description | Molluscan taphonomic patterns below the sediment-water interface in three freshwater shallow lakes from the Southeastern Pampa Plain, Argentina (Nahuel Rucá, Las Mostazas, and Los Carpinchos), were analyzed in order to explore the taphonomic alteration suffered by mollusks with depth and determine if this taphonomic alteration varied locally within lakes or between them. Short cores (approximately 30 cm) from littoral environment as well as open water were sampled in each lake. Nine mollusk species were identified: Heleobia parchappii, H. australis, Biomphalaria peregrina, Uncancylus concentricus, Musculium argentinum, Drepanotrema kermatoides, Succinea meridionalis, Antillorbis nordestensis, and Pomacea canaliculata. The highest percentage of moisture, organic matter and carbonates as well as less alkaline pH were recorded at the top of the cores and in littoral environments, indicating less favorable conditions for preservation. Results suggest that the taphonomically active zone occupies the first 10 cm below the sediment-water interface. |
| doi_str_mv | 10.2110/palo.2016.081 |
| format | Article |
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Short cores (approximately 30 cm) from littoral environment as well as open water were sampled in each lake. Nine mollusk species were identified: Heleobia parchappii, H. australis, Biomphalaria peregrina, Uncancylus concentricus, Musculium argentinum, Drepanotrema kermatoides, Succinea meridionalis, Antillorbis nordestensis, and Pomacea canaliculata. The highest percentage of moisture, organic matter and carbonates as well as less alkaline pH were recorded at the top of the cores and in littoral environments, indicating less favorable conditions for preservation. Results suggest that the taphonomically active zone occupies the first 10 cm below the sediment-water interface.</description><identifier>ISSN: 0883-1351</identifier><identifier>EISSN: 1938-5323</identifier><identifier>DOI: 10.2110/palo.2016.081</identifier><language>eng</language><publisher>Society for Sedimentary Geology</publisher><subject>Antillorbis nordestensis ; Argentina ; Biomphalaria peregrina ; Bivalvia ; Buenos Aires Argentina ; Cenozoic ; chemical composition ; cores ; Drepanotrema kermatoides ; fresh-water environment ; Gastropoda ; Heleobia ; Holocene ; Invertebrata ; invertebrate ; lacustrine environment ; lake sediments ; Las Mostazas Lake ; Los Carpinchos Lake ; Mollusca ; Musculium argentinum ; Nahuel Ruca Lake ; paleoenvironment ; Paleontology ; Pampas ; Pomacea canaliculata ; preservation ; Quaternary ; Research Article ; sediments ; shells ; South America ; Succinea meridionalis ; taphonomy ; Uncancylus concentricus ; upper Holocene</subject><ispartof>Palaios, 2017-08, Vol.32 (8), p.528-542</ispartof><rights>Copyright © 2017, SEPM (Society for Sedimentary Geology)</rights><rights>GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld @Alexandria, VA @USA @United States. 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Short cores (approximately 30 cm) from littoral environment as well as open water were sampled in each lake. Nine mollusk species were identified: Heleobia parchappii, H. australis, Biomphalaria peregrina, Uncancylus concentricus, Musculium argentinum, Drepanotrema kermatoides, Succinea meridionalis, Antillorbis nordestensis, and Pomacea canaliculata. The highest percentage of moisture, organic matter and carbonates as well as less alkaline pH were recorded at the top of the cores and in littoral environments, indicating less favorable conditions for preservation. Results suggest that the taphonomically active zone occupies the first 10 cm below the sediment-water interface.</description><subject>Antillorbis nordestensis</subject><subject>Argentina</subject><subject>Biomphalaria peregrina</subject><subject>Bivalvia</subject><subject>Buenos Aires Argentina</subject><subject>Cenozoic</subject><subject>chemical composition</subject><subject>cores</subject><subject>Drepanotrema kermatoides</subject><subject>fresh-water environment</subject><subject>Gastropoda</subject><subject>Heleobia</subject><subject>Holocene</subject><subject>Invertebrata</subject><subject>invertebrate</subject><subject>lacustrine environment</subject><subject>lake sediments</subject><subject>Las Mostazas Lake</subject><subject>Los Carpinchos Lake</subject><subject>Mollusca</subject><subject>Musculium argentinum</subject><subject>Nahuel Ruca Lake</subject><subject>paleoenvironment</subject><subject>Paleontology</subject><subject>Pampas</subject><subject>Pomacea canaliculata</subject><subject>preservation</subject><subject>Quaternary</subject><subject>Research Article</subject><subject>sediments</subject><subject>shells</subject><subject>South America</subject><subject>Succinea meridionalis</subject><subject>taphonomy</subject><subject>Uncancylus concentricus</subject><subject>upper Holocene</subject><issn>0883-1351</issn><issn>1938-5323</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqWwZInkPaR47MZ1lia4TURealJ1Gbl5oFalqZIixCfw1zgKgiWbmdHcO8fyRegWyIQCkMej3jcTSoBPiIAzNAKHCctmlJ2jERGCWcBsuERXXbcjBGxi0xH6CuMgWKWujHAmEy-O4tB3cSKzTC2jFD-pIF7jzFM4Vc9-qKLMWksjYT8ydS5dZSY8X6rUG_apJ4P-JJAvKjVCHA7X8co0mfZUQw8TiZNA-tEDlsuFofqRvEYXtd531c1PH6PVXGWuZwXxwndlYGnmsJMlgDjMqUteMQ1TQQpBal7apKwFc0hJC0pBOwBlyYVmnGte2HpTzpjZMahsNkbWwC3apuvaqs6P7fZNt585kLzPMe9zzPscc5Oj8d8N_l13atpfM-UzQYAyo98P-mvVdMW2OhTVR9Puy3zXvLcH85MeNTOoKef0z73ZNs2h-uftbzQ1gbQ</recordid><startdate>201708</startdate><enddate>201708</enddate><creator>CRISTINI, PAULA ANDREA</creator><creator>FRANCESCO, CLAUDIO GERMÁN DE</creator><general>Society for Sedimentary Geology</general><general>SEPM Society for Sedimentary Geology</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201708</creationdate><title>MOLLUSCAN TAPHONOMIC PATTERNS BELOW THE SEDIMENT-WATER INTERFACE IN FRESHWATER SHALLOW LAKES FROM THE SOUTHEASTERN PAMPA PLAIN, ARGENTINA</title><author>CRISTINI, PAULA ANDREA ; FRANCESCO, CLAUDIO GERMÁN DE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a393t-810939fd6e3a1480c80f6d50df8390d2c221a911dd68a366a6c5abd7391131e53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Antillorbis nordestensis</topic><topic>Argentina</topic><topic>Biomphalaria peregrina</topic><topic>Bivalvia</topic><topic>Buenos Aires Argentina</topic><topic>Cenozoic</topic><topic>chemical composition</topic><topic>cores</topic><topic>Drepanotrema kermatoides</topic><topic>fresh-water environment</topic><topic>Gastropoda</topic><topic>Heleobia</topic><topic>Holocene</topic><topic>Invertebrata</topic><topic>invertebrate</topic><topic>lacustrine environment</topic><topic>lake sediments</topic><topic>Las Mostazas Lake</topic><topic>Los Carpinchos Lake</topic><topic>Mollusca</topic><topic>Musculium argentinum</topic><topic>Nahuel Ruca Lake</topic><topic>paleoenvironment</topic><topic>Paleontology</topic><topic>Pampas</topic><topic>Pomacea canaliculata</topic><topic>preservation</topic><topic>Quaternary</topic><topic>Research Article</topic><topic>sediments</topic><topic>shells</topic><topic>South America</topic><topic>Succinea meridionalis</topic><topic>taphonomy</topic><topic>Uncancylus concentricus</topic><topic>upper Holocene</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CRISTINI, PAULA ANDREA</creatorcontrib><creatorcontrib>FRANCESCO, CLAUDIO GERMÁN DE</creatorcontrib><collection>CrossRef</collection><jtitle>Palaios</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CRISTINI, PAULA ANDREA</au><au>FRANCESCO, CLAUDIO GERMÁN DE</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MOLLUSCAN TAPHONOMIC PATTERNS BELOW THE SEDIMENT-WATER INTERFACE IN FRESHWATER SHALLOW LAKES FROM THE SOUTHEASTERN PAMPA PLAIN, ARGENTINA</atitle><jtitle>Palaios</jtitle><date>2017-08</date><risdate>2017</risdate><volume>32</volume><issue>8</issue><spage>528</spage><epage>542</epage><pages>528-542</pages><issn>0883-1351</issn><eissn>1938-5323</eissn><abstract>Molluscan taphonomic patterns below the sediment-water interface in three freshwater shallow lakes from the Southeastern Pampa Plain, Argentina (Nahuel Rucá, Las Mostazas, and Los Carpinchos), were analyzed in order to explore the taphonomic alteration suffered by mollusks with depth and determine if this taphonomic alteration varied locally within lakes or between them. Short cores (approximately 30 cm) from littoral environment as well as open water were sampled in each lake. Nine mollusk species were identified: Heleobia parchappii, H. australis, Biomphalaria peregrina, Uncancylus concentricus, Musculium argentinum, Drepanotrema kermatoides, Succinea meridionalis, Antillorbis nordestensis, and Pomacea canaliculata. The highest percentage of moisture, organic matter and carbonates as well as less alkaline pH were recorded at the top of the cores and in littoral environments, indicating less favorable conditions for preservation. Results suggest that the taphonomically active zone occupies the first 10 cm below the sediment-water interface.</abstract><pub>Society for Sedimentary Geology</pub><doi>10.2110/palo.2016.081</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Antillorbis nordestensis Argentina Biomphalaria peregrina Bivalvia Buenos Aires Argentina Cenozoic chemical composition cores Drepanotrema kermatoides fresh-water environment Gastropoda Heleobia Holocene Invertebrata invertebrate lacustrine environment lake sediments Las Mostazas Lake Los Carpinchos Lake Mollusca Musculium argentinum Nahuel Ruca Lake paleoenvironment Paleontology Pampas Pomacea canaliculata preservation Quaternary Research Article sediments shells South America Succinea meridionalis taphonomy Uncancylus concentricus upper Holocene |
| title | MOLLUSCAN TAPHONOMIC PATTERNS BELOW THE SEDIMENT-WATER INTERFACE IN FRESHWATER SHALLOW LAKES FROM THE SOUTHEASTERN PAMPA PLAIN, ARGENTINA |
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