{"id":{"repo_id":"u-iceland","oai_identifier":"oai:skemman.is:1946/29526"},"canonical_url":"https://search.dev.ndltd.org/etd/u-iceland/oai:skemman.is:1946/29526","repository":{"repo_id":"u-iceland","name":"University of Iceland","base_url":"https://skemman.is/oai/request"},"display":{"title":"Sedimentological analyses of late Pleistocene sediments from Lake Lisan in the Jordan River Valley, Israel","abstract":"Sediments in an exposed section in a quarry in the Jordan River Valley, about 6 km south of the Sea of Galilee, were investigated in order to shed light on their depositional environment. The sediments of the Quarry section were described in detail in the field and sampled for subsequent analyses. Lab treatment of the samples included smear slide production and sieving. The results from the smear slide analysis, sieve residue analysis and microfossil count data were used to interpret the depositional setting in which the sediments were produced. The fine-grained and homogenous characteristics of the sediments and their location at -214 m asl. suggest that the deposits were formed in the hypersaline Lake Lisan, the Pleistocene precursor of the Dead Sea, sometime between 31,000 and 19,000 years ago. Abundant calcite and shells of the brackish water ostracod Cyprideis torosa in the sediments, as well as additional shells of species such as Humphcypris subterranea, Heterocypris salina and Ilyocypris sp. in the samples indicate that the water at the location of the Quarry section was at least partly mixed with freshwater from the Sea of Galilee region in the north. The sediments were likely produced when Lake Lisan and the Sea of Galilee existed as one unified waterbody. This unification resulted in more fresh conditions of Lake Lisan at the Quarry section location than those that typically occurred in other regions of the lake further south.","abstract_html":"Sediments in an exposed section in a quarry in the Jordan River Valley, about 6 km south of the Sea of Galilee, were investigated in order to shed light on their depositional environment. The sediments of the Quarry section were described in detail in the field and sampled for subsequent analyses. Lab treatment of the samples included smear slide production and sieving. The results from the smear slide analysis, sieve residue analysis and microfossil count data were used to interpret the depositional setting in which the sediments were produced. The fine-grained and homogenous characteristics of the sediments and their location at -214 m asl. suggest that the deposits were formed in the hypersaline Lake Lisan, the Pleistocene precursor of the Dead Sea, sometime between 31,000 and 19,000 years ago. Abundant calcite and shells of the brackish water ostracod Cyprideis torosa in the sediments, as well as additional shells of species such as Humphcypris subterranea, Heterocypris salina and Ilyocypris sp. in the samples indicate that the water at the location of the Quarry section was at least partly mixed with freshwater from the Sea of Galilee region in the north. The sediments were likely produced when Lake Lisan and the Sea of Galilee existed as one unified waterbody. This unification resulted in more fresh conditions of Lake Lisan at the Quarry section location than those that typically occurred in other regions of the lake further south.","abstract_has_math":false,"creators":["Eiríka Ösp Arnardóttir 1993-"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Háskóli Íslands"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-02-02T14:27:39Z","date_published":"2018-02-02T14:27:39Z","updated_at":"2026-07-27T21:38:40Z","subjects":["Jarðfræði","Jarðsaga","Setlög","Setmyndun","Rannsóknir","Ísrael"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1946/29526","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Háskóli Íslands"]},{"key":"dc:creator","label":"Author","values":["Eiríka Ösp Arnardóttir 1993-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-02-02T14:27:39Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-02-02T14:27:39Z"]},{"key":"dc:date.issued","label":"Date","values":["2018-02-02T14:27:39Z"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Jarðfræði","Jarðsaga","Setlög","Setmyndun","Rannsóknir","Ísrael"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1946/29526"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Sediments in an exposed section in a quarry in the Jordan River Valley, about 6 km south of the Sea of Galilee, were investigated in order to shed light on their depositional environment. The sediments of the Quarry section were described in detail in the field and sampled for subsequent analyses. Lab treatment of the samples included smear slide production and sieving. The results from the smear slide analysis, sieve residue analysis and microfossil count data were used to interpret the depositional setting in which the sediments were produced. The fine-grained and homogenous characteristics of the sediments and their location at -214 m asl. suggest that the deposits were formed in the hypersaline Lake Lisan, the Pleistocene precursor of the Dead Sea, sometime between 31,000 and 19,000 years ago. Abundant calcite and shells of the brackish water ostracod Cyprideis torosa in the sediments, as well as additional shells of species such as Humphcypris subterranea, Heterocypris salina and Ilyocypris sp. in the samples indicate that the water at the location of the Quarry section was at least partly mixed with freshwater from the Sea of Galilee region in the north. The sediments were likely produced when Lake Lisan and the Sea of Galilee existed as one unified waterbody. This unification resulted in more fresh conditions of Lake Lisan at the Quarry section location than those that typically occurred in other regions of the lake further south.","Lýst er setlögum úr hinu forna Lisanvatni, forvera Dauðahafsins frá síð-pleistósen. Sýni voru tekin úr námu við ána Jórdan rétt sunnan við Galíleuvatn og setlögunum lýst í smáatriðum. Á rannsóknarstofu voru sýnin undirbúin til athugunar á því setmyndunarumhverfi sem þau mynduðust í. Dreifisneiðar voru útbúnar úr sýnunum og þær skoðaðar í smásjá til að kanna samsetningu smæstu agna setsins. Einnig var efni eins og bergmylsnur, skeljabrot og smásteingervingar greint í sýnunum eftir að þau höfðu verið sigtuð. Niðurstöður rannsóknarinnar leiddu í ljós að setlögin í námunni hafi að öllum líkindum myndast í Lisanvatni á þeim tíma sem það var sameinað við Galíleuvatn fyrir um 19,000-31,000 árum síðan. Kalsít og steingerðar skeljar ferskvantsskelkrabba í setinu benda til þess að hið salta Lisanvatn hafi á þessum stað gætt ferskvatnsáhrifa frá Galíleu í norðri. Blöndun vatnanna tveggja varð til þess að setmyndunareiginleikar Lisanvatns á þessu svæði urðu frábrugnir hinum dæmigerðu setmyndunareiginleikum sem áttu sér stað í vatninu öllu sunnan við rannsóknarsvæðið."]},{"key":"dc:title","label":"Title","values":["Sedimentological analyses of late Pleistocene sediments from Lake Lisan in the Jordan River Valley, Israel","Greining á seti úr Lisanvatni frá síð-pleistósen, skammt sunnan við Galíleuvatn í Ísrael"]}]}],"canonical_facts":{"dc:contributor":["Háskóli Íslands"],"dc:creator":["Eiríka Ösp Arnardóttir 1993-"],"dc:date.accessioned":["2018-02-02T14:27:39Z"],"dc:date.available":["2018-02-02T14:27:39Z"],"dc:date.issued":["2018-02-02T14:27:39Z"],"dc:description.abstract":["Sediments in an exposed section in a quarry in the Jordan River Valley, about 6 km south of the Sea of Galilee, were investigated in order to shed light on their depositional environment. The sediments of the Quarry section were described in detail in the field and sampled for subsequent analyses. Lab treatment of the samples included smear slide production and sieving. The results from the smear slide analysis, sieve residue analysis and microfossil count data were used to interpret the depositional setting in which the sediments were produced. The fine-grained and homogenous characteristics of the sediments and their location at -214 m asl. suggest that the deposits were formed in the hypersaline Lake Lisan, the Pleistocene precursor of the Dead Sea, sometime between 31,000 and 19,000 years ago. Abundant calcite and shells of the brackish water ostracod Cyprideis torosa in the sediments, as well as additional shells of species such as Humphcypris subterranea, Heterocypris salina and Ilyocypris sp. in the samples indicate that the water at the location of the Quarry section was at least partly mixed with freshwater from the Sea of Galilee region in the north. The sediments were likely produced when Lake Lisan and the Sea of Galilee existed as one unified waterbody. This unification resulted in more fresh conditions of Lake Lisan at the Quarry section location than those that typically occurred in other regions of the lake further south.","Lýst er setlögum úr hinu forna Lisanvatni, forvera Dauðahafsins frá síð-pleistósen. Sýni voru tekin úr námu við ána Jórdan rétt sunnan við Galíleuvatn og setlögunum lýst í smáatriðum. Á rannsóknarstofu voru sýnin undirbúin til athugunar á því setmyndunarumhverfi sem þau mynduðust í. Dreifisneiðar voru útbúnar úr sýnunum og þær skoðaðar í smásjá til að kanna samsetningu smæstu agna setsins. Einnig var efni eins og bergmylsnur, skeljabrot og smásteingervingar greint í sýnunum eftir að þau höfðu verið sigtuð. Niðurstöður rannsóknarinnar leiddu í ljós að setlögin í námunni hafi að öllum líkindum myndast í Lisanvatni á þeim tíma sem það var sameinað við Galíleuvatn fyrir um 19,000-31,000 árum síðan. Kalsít og steingerðar skeljar ferskvantsskelkrabba í setinu benda til þess að hið salta Lisanvatn hafi á þessum stað gætt ferskvatnsáhrifa frá Galíleu í norðri. Blöndun vatnanna tveggja varð til þess að setmyndunareiginleikar Lisanvatns á þessu svæði urðu frábrugnir hinum dæmigerðu setmyndunareiginleikum sem áttu sér stað í vatninu öllu sunnan við rannsóknarsvæðið."],"dc:identifier.uri":["http://hdl.handle.net/1946/29526"],"dc:language.iso":["en"],"dc:subject":["Jarðfræði","Jarðsaga","Setlög","Setmyndun","Rannsóknir","Ísrael"],"dc:title":["Sedimentological analyses of late Pleistocene sediments from Lake Lisan in the Jordan River Valley, Israel","Greining á seti úr Lisanvatni frá síð-pleistósen, skammt sunnan við Galíleuvatn í Ísrael"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T21:38:40Z"}