Dense mineral distribution in the northwestern Arabian Sea: insights into sediment provenance and paleoclimate
The dense minerals (often called heavy minerals, density of more than 2.89 g/cm 3 ) of northwestern Arabian Sea are studied to understand their provenance and implications to paleoclimates during the last 150 kyrs. Two cores: 723A (latitude 18°03.079′N and longitude 57°36.561′E; 808 m water depth) a...
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| Veröffentlicht in: | Arabian journal of geosciences 2023-11, Vol.16 (11), Article 611 |
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| creator | Dev, Vikas Sahu, Anil Kumar Rai, Ajai Kumar Das, Siddhartha Sankar |
| description | The dense minerals (often called heavy minerals, density of more than 2.89 g/cm
3
) of northwestern Arabian Sea are studied to understand their provenance and implications to paleoclimates during the last 150 kyrs. Two cores: 723A (latitude 18°03.079′N and longitude 57°36.561′E; 808 m water depth) and 722B (latitude16°37.312′N and longitude 59°47.755′E; water depth 2028 m) away from the eastern coastline of Arabian Peninsula are taken. The total carbonate, acid insoluble residue, volume magnetic susceptibility and oxygen isotope data are used to correlate paleoenvironmental changes. A few elemental chemistry of core 722B is also used to understand source rock weathering characteristics. Ilmenite and magnetite are occurring as dominant opaque minerals in both the core sites. The shallower site 723A predominantly consists of hornblende, apatite, fluorite, epidote and chlorite; whereas, the deeper site 722B consists of epidote, fluorite, biotite, apatite and staurolite. The other important heavy minerals found in core sites are tourmaline, rutile, garnet, zircon, chloritoid, kyanite, sillimanite and pyroxenes. Low ZTR indices ( |
| doi_str_mv | 10.1007/s12517-023-11728-z |
| format | Article |
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3
) of northwestern Arabian Sea are studied to understand their provenance and implications to paleoclimates during the last 150 kyrs. Two cores: 723A (latitude 18°03.079′N and longitude 57°36.561′E; 808 m water depth) and 722B (latitude16°37.312′N and longitude 59°47.755′E; water depth 2028 m) away from the eastern coastline of Arabian Peninsula are taken. The total carbonate, acid insoluble residue, volume magnetic susceptibility and oxygen isotope data are used to correlate paleoenvironmental changes. A few elemental chemistry of core 722B is also used to understand source rock weathering characteristics. Ilmenite and magnetite are occurring as dominant opaque minerals in both the core sites. The shallower site 723A predominantly consists of hornblende, apatite, fluorite, epidote and chlorite; whereas, the deeper site 722B consists of epidote, fluorite, biotite, apatite and staurolite. The other important heavy minerals found in core sites are tourmaline, rutile, garnet, zircon, chloritoid, kyanite, sillimanite and pyroxenes. Low ZTR indices (< 10%) in both the core sediment samples along with subangular to subrounded grains indicate sediment immaturity, higher rates of weathering, less continental transportation and dominant derivation from the primary source rocks such as granites, pegmatites and basic igneous rocks. The mineral assemblages and roundness data further indicated contributions also occurred from the metamorphic rocks (such as schists, amphibolites, granulites and gneisses) and sedimentary rocks/recycled sediments, respectively. The Arabian Peninsula, Somalia, Iran-Makran regions and the Himalayan Complex have contributed sediments to these sites. Various heavy mineral ratios indicated the mixed provenance. Decrease of dense mineral abundance away from the east coast of Arabian Peninsula indicated early deposition of minerals from the agencies. Glacial stages and millennial cold events are indicated by higher abundance of heavy minerals along with higher terrigenous input, volume magnetic susceptibilities and better roundness indicated that the northwesterly wind originated from the Arabian Peninsula and Iran-Makran regions played a major role in sediment transportation to these sites.</description><identifier>ISSN: 1866-7511</identifier><identifier>EISSN: 1866-7538</identifier><identifier>DOI: 10.1007/s12517-023-11728-z</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Abundance ; Amphibolites ; Apatite ; Biotite ; Carbonates ; Chlorite ; Earth and Environmental Science ; Earth science ; Earth Sciences ; Fluorite ; Garnet ; Heavy minerals ; Igneous rocks ; Ilmenite ; Kyanite ; Longitude ; Magnetic permeability ; Magnetic susceptibility ; Magnetite ; Metamorphic rocks ; Mineral assemblages ; Minerals ; Original Paper ; Oxygen isotopes ; Paleoclimate ; Roundness ; Schists ; Sediment samplers ; Sediment samples ; Sedimentary rocks ; Sediments ; Sillimanite ; Tourmaline ; Transportation ; Water depth ; Weathering ; Zircon</subject><ispartof>Arabian journal of geosciences, 2023-11, Vol.16 (11), Article 611</ispartof><rights>Saudi Society for Geosciences and Springer Nature Switzerland AG 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-a138z-72f35e1b1c98951e13009338c0ccdfe198b2e7e4d4815093763938f34118e6c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12517-023-11728-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12517-023-11728-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Dev, Vikas</creatorcontrib><creatorcontrib>Sahu, Anil Kumar</creatorcontrib><creatorcontrib>Rai, Ajai Kumar</creatorcontrib><creatorcontrib>Das, Siddhartha Sankar</creatorcontrib><title>Dense mineral distribution in the northwestern Arabian Sea: insights into sediment provenance and paleoclimate</title><title>Arabian journal of geosciences</title><addtitle>Arab J Geosci</addtitle><description>The dense minerals (often called heavy minerals, density of more than 2.89 g/cm
3
) of northwestern Arabian Sea are studied to understand their provenance and implications to paleoclimates during the last 150 kyrs. Two cores: 723A (latitude 18°03.079′N and longitude 57°36.561′E; 808 m water depth) and 722B (latitude16°37.312′N and longitude 59°47.755′E; water depth 2028 m) away from the eastern coastline of Arabian Peninsula are taken. The total carbonate, acid insoluble residue, volume magnetic susceptibility and oxygen isotope data are used to correlate paleoenvironmental changes. A few elemental chemistry of core 722B is also used to understand source rock weathering characteristics. Ilmenite and magnetite are occurring as dominant opaque minerals in both the core sites. The shallower site 723A predominantly consists of hornblende, apatite, fluorite, epidote and chlorite; whereas, the deeper site 722B consists of epidote, fluorite, biotite, apatite and staurolite. The other important heavy minerals found in core sites are tourmaline, rutile, garnet, zircon, chloritoid, kyanite, sillimanite and pyroxenes. Low ZTR indices (< 10%) in both the core sediment samples along with subangular to subrounded grains indicate sediment immaturity, higher rates of weathering, less continental transportation and dominant derivation from the primary source rocks such as granites, pegmatites and basic igneous rocks. The mineral assemblages and roundness data further indicated contributions also occurred from the metamorphic rocks (such as schists, amphibolites, granulites and gneisses) and sedimentary rocks/recycled sediments, respectively. The Arabian Peninsula, Somalia, Iran-Makran regions and the Himalayan Complex have contributed sediments to these sites. Various heavy mineral ratios indicated the mixed provenance. Decrease of dense mineral abundance away from the east coast of Arabian Peninsula indicated early deposition of minerals from the agencies. Glacial stages and millennial cold events are indicated by higher abundance of heavy minerals along with higher terrigenous input, volume magnetic susceptibilities and better roundness indicated that the northwesterly wind originated from the Arabian Peninsula and Iran-Makran regions played a major role in sediment transportation to these sites.</description><subject>Abundance</subject><subject>Amphibolites</subject><subject>Apatite</subject><subject>Biotite</subject><subject>Carbonates</subject><subject>Chlorite</subject><subject>Earth and Environmental Science</subject><subject>Earth science</subject><subject>Earth Sciences</subject><subject>Fluorite</subject><subject>Garnet</subject><subject>Heavy minerals</subject><subject>Igneous rocks</subject><subject>Ilmenite</subject><subject>Kyanite</subject><subject>Longitude</subject><subject>Magnetic permeability</subject><subject>Magnetic susceptibility</subject><subject>Magnetite</subject><subject>Metamorphic rocks</subject><subject>Mineral assemblages</subject><subject>Minerals</subject><subject>Original Paper</subject><subject>Oxygen isotopes</subject><subject>Paleoclimate</subject><subject>Roundness</subject><subject>Schists</subject><subject>Sediment samplers</subject><subject>Sediment samples</subject><subject>Sedimentary rocks</subject><subject>Sediments</subject><subject>Sillimanite</subject><subject>Tourmaline</subject><subject>Transportation</subject><subject>Water depth</subject><subject>Weathering</subject><subject>Zircon</subject><issn>1866-7511</issn><issn>1866-7538</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kMFOwzAQRC0EEqXwA5wscQ544yZ2uFWFAlIlDvRuOc6mdZU6xXZB9OsxBMGN0460b3ZHQ8glsGtgTNwEyAsQGct5BiBymR2OyAhkWWai4PL4VwOckrMQNoyVkgk5Iu4OXUC6tQ697mhjQ_S23kfbO2odjWukrvdx_Y4hond06nVttaMvqG8TEOxqHUMSsacBG7tFF-nO92_otDNItWvoTnfYm85udcRzctLqLuDFzxyT5fx-OXvMFs8PT7PpItPA5SETecsLhBpMJasCEDhjFefSMGOaFqGSdY4CJ81EQpE2ouQVly2fAEgsDR-Tq-FsivK6T9HVpt97lz6qXIoKZMEFJCofKOP7EDy2audTSv-hgKmvWtVQq0q1qu9a1SGZ-GAKCXYr9H-n_3F9AtVNfHA</recordid><startdate>202311</startdate><enddate>202311</enddate><creator>Dev, Vikas</creator><creator>Sahu, Anil Kumar</creator><creator>Rai, Ajai Kumar</creator><creator>Das, Siddhartha Sankar</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>202311</creationdate><title>Dense mineral distribution in the northwestern Arabian Sea: insights into sediment provenance and paleoclimate</title><author>Dev, Vikas ; Sahu, Anil Kumar ; Rai, Ajai Kumar ; Das, Siddhartha Sankar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a138z-72f35e1b1c98951e13009338c0ccdfe198b2e7e4d4815093763938f34118e6c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Abundance</topic><topic>Amphibolites</topic><topic>Apatite</topic><topic>Biotite</topic><topic>Carbonates</topic><topic>Chlorite</topic><topic>Earth and Environmental Science</topic><topic>Earth science</topic><topic>Earth Sciences</topic><topic>Fluorite</topic><topic>Garnet</topic><topic>Heavy minerals</topic><topic>Igneous rocks</topic><topic>Ilmenite</topic><topic>Kyanite</topic><topic>Longitude</topic><topic>Magnetic permeability</topic><topic>Magnetic susceptibility</topic><topic>Magnetite</topic><topic>Metamorphic rocks</topic><topic>Mineral assemblages</topic><topic>Minerals</topic><topic>Original Paper</topic><topic>Oxygen isotopes</topic><topic>Paleoclimate</topic><topic>Roundness</topic><topic>Schists</topic><topic>Sediment samplers</topic><topic>Sediment samples</topic><topic>Sedimentary rocks</topic><topic>Sediments</topic><topic>Sillimanite</topic><topic>Tourmaline</topic><topic>Transportation</topic><topic>Water depth</topic><topic>Weathering</topic><topic>Zircon</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dev, Vikas</creatorcontrib><creatorcontrib>Sahu, Anil Kumar</creatorcontrib><creatorcontrib>Rai, Ajai Kumar</creatorcontrib><creatorcontrib>Das, Siddhartha Sankar</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Arabian journal of geosciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dev, Vikas</au><au>Sahu, Anil Kumar</au><au>Rai, Ajai Kumar</au><au>Das, Siddhartha Sankar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dense mineral distribution in the northwestern Arabian Sea: insights into sediment provenance and paleoclimate</atitle><jtitle>Arabian journal of geosciences</jtitle><stitle>Arab J Geosci</stitle><date>2023-11</date><risdate>2023</risdate><volume>16</volume><issue>11</issue><artnum>611</artnum><issn>1866-7511</issn><eissn>1866-7538</eissn><abstract>The dense minerals (often called heavy minerals, density of more than 2.89 g/cm
3
) of northwestern Arabian Sea are studied to understand their provenance and implications to paleoclimates during the last 150 kyrs. Two cores: 723A (latitude 18°03.079′N and longitude 57°36.561′E; 808 m water depth) and 722B (latitude16°37.312′N and longitude 59°47.755′E; water depth 2028 m) away from the eastern coastline of Arabian Peninsula are taken. The total carbonate, acid insoluble residue, volume magnetic susceptibility and oxygen isotope data are used to correlate paleoenvironmental changes. A few elemental chemistry of core 722B is also used to understand source rock weathering characteristics. Ilmenite and magnetite are occurring as dominant opaque minerals in both the core sites. The shallower site 723A predominantly consists of hornblende, apatite, fluorite, epidote and chlorite; whereas, the deeper site 722B consists of epidote, fluorite, biotite, apatite and staurolite. The other important heavy minerals found in core sites are tourmaline, rutile, garnet, zircon, chloritoid, kyanite, sillimanite and pyroxenes. Low ZTR indices (< 10%) in both the core sediment samples along with subangular to subrounded grains indicate sediment immaturity, higher rates of weathering, less continental transportation and dominant derivation from the primary source rocks such as granites, pegmatites and basic igneous rocks. The mineral assemblages and roundness data further indicated contributions also occurred from the metamorphic rocks (such as schists, amphibolites, granulites and gneisses) and sedimentary rocks/recycled sediments, respectively. The Arabian Peninsula, Somalia, Iran-Makran regions and the Himalayan Complex have contributed sediments to these sites. Various heavy mineral ratios indicated the mixed provenance. Decrease of dense mineral abundance away from the east coast of Arabian Peninsula indicated early deposition of minerals from the agencies. Glacial stages and millennial cold events are indicated by higher abundance of heavy minerals along with higher terrigenous input, volume magnetic susceptibilities and better roundness indicated that the northwesterly wind originated from the Arabian Peninsula and Iran-Makran regions played a major role in sediment transportation to these sites.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s12517-023-11728-z</doi></addata></record> |
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| subjects | Abundance Amphibolites Apatite Biotite Carbonates Chlorite Earth and Environmental Science Earth science Earth Sciences Fluorite Garnet Heavy minerals Igneous rocks Ilmenite Kyanite Longitude Magnetic permeability Magnetic susceptibility Magnetite Metamorphic rocks Mineral assemblages Minerals Original Paper Oxygen isotopes Paleoclimate Roundness Schists Sediment samplers Sediment samples Sedimentary rocks Sediments Sillimanite Tourmaline Transportation Water depth Weathering Zircon |
| title | Dense mineral distribution in the northwestern Arabian Sea: insights into sediment provenance and paleoclimate |
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