Origin and geodynamic significance of Tertiary postcollisional basaltic magmatism in Serbia (central Balkan Peninsula)

V. Cvetković, D. Prelević, H. Downes, M. Jovanović, O. Vaselli, Z. Pécskay

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

Tertiary basaltic magmatism in Serbia occurred through three episodes: (i) Paleocene/Eocene, when mostly east Serbian mafic alkaline rocks (ESPEMAR) formed, (ii) Oligocene/Miocene, dominated by high-K calc-alkaline basalts, shoshonites (HKCA-SHO) and ultrapotassic (UP) rocks, and (iii) Pliocene episode when rocks similar to (ii) originated. In this study, the geodynamics inferred from petrogenesis of the (i) and (ii) episodes are discussed.The ESPEMAR (62-39 Ma) occur mainly as mantle xenolith-bearing basanites. Their geochemical features, such as the REE patterns, elevated HFSE contents and depleted Sr-Nd isotope signatures, indicate a relatively small degree of melting of an isotopically depleted mantle source. Their mantle-normalized trace element patterns are flat to concave and "bell-shaped", characteristic of an OIB source free of subduction component. 87Sr/ 86Sri and 143Nd/144Nd i isotope ratios (0.7030-0.7047 and 0.5127-0.5129, respectively) indicate a depleted source for the ESPEMAR similar to the European Asthenospheric Reservoir (EAR).The HKCA-SHO rocks (30-21 Ma) occur as basalts, basaltic andesites and trachyandesites. They show enrichment in LILE and depletion in HFSE with all the distinctive features of calc-alkaline arc-type magmatism. This is coupled with somewhat enriched Sr-Nd isotope signature (87Sr/86Sr i=0.7047-0.7064, 143Nd/144 Ndi=0.5124-0.5126). All these features are characteristic of subduction-related metasomatism and fluxing of the HKCA-SHO mantle source with fluids/melts released from subducted sedimentary material.UP rocks (35-21 Ma) appear as (i) Si-rich lamproites and related rocks and (ii) olivine leucitites and related rocks. UP rocks have high-LILE/HFSE ratios with enrichment for some LILE around 1000× primitive mantle, troughs at Nb and Ti, and peaks of Pb in their mantle-normalized patterns. They also show highly fractionated REE patterns (La/Yb up to 27, LaN up to 400). The isotopic ratios approach crustal values (87 Sr/86Sri=0.7059-0.7115 and 143 Nd/144Ndi=0.5122-0.5126), and that signature is typical for ultrapotassic rocks worldwide.The Paleocene/Eocene episode and formation of the ESPEMAR is referred to as asthenospheric-derived magmatism. This magmatism originated through passive riftlike structures related to possible short relaxational phases during predominantly collisional and compressional conditions. The Oligocene/Miocene episode and formation of HKCA-SHO and UP rocks were dominated by lithospheric-controlled magmatism . Its origin is connected with the activity of a wide dextral wrench corridor generated along the axis of the Dinaride orogen which collapsed in response to thickened crust caused by earlier compressional processes.To explain conditions of these two magmatic events, a three-stage geodynamic model has been proposed: (1) subduction-termination/collision stage (Paleocene/Eocene), (2) collision stage (Eocene) and (3) postcollision/collapse stage (Oligocene/early Miocene).

Original languageEnglish
Pages (from-to)161-186
Number of pages26
JournalLithos
Volume73
Issue number3-4
DOIs
Publication statusPublished - Apr 2004

Fingerprint

Geodynamics
geodynamics
magmatism
Rocks
rock
basalt
Eocene
Paleocene
mantle
Oligocene
Isotopes
subduction
Miocene
isotope
mantle source
rare earth element
collision
Bearings (structural)
Hand tools
xenolith

Keywords

  • Basanites
  • Dinarides
  • Postcollisional collapse
  • Serbia
  • Ultrapotassic

ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Origin and geodynamic significance of Tertiary postcollisional basaltic magmatism in Serbia (central Balkan Peninsula). / Cvetković, V.; Prelević, D.; Downes, H.; Jovanović, M.; Vaselli, O.; Pécskay, Z.

In: Lithos, Vol. 73, No. 3-4, 04.2004, p. 161-186.

Research output: Contribution to journalArticle

Cvetković, V. ; Prelević, D. ; Downes, H. ; Jovanović, M. ; Vaselli, O. ; Pécskay, Z. / Origin and geodynamic significance of Tertiary postcollisional basaltic magmatism in Serbia (central Balkan Peninsula). In: Lithos. 2004 ; Vol. 73, No. 3-4. pp. 161-186.
@article{31c21e57957e4dd283bae127140d267a,
title = "Origin and geodynamic significance of Tertiary postcollisional basaltic magmatism in Serbia (central Balkan Peninsula)",
abstract = "Tertiary basaltic magmatism in Serbia occurred through three episodes: (i) Paleocene/Eocene, when mostly east Serbian mafic alkaline rocks (ESPEMAR) formed, (ii) Oligocene/Miocene, dominated by high-K calc-alkaline basalts, shoshonites (HKCA-SHO) and ultrapotassic (UP) rocks, and (iii) Pliocene episode when rocks similar to (ii) originated. In this study, the geodynamics inferred from petrogenesis of the (i) and (ii) episodes are discussed.The ESPEMAR (62-39 Ma) occur mainly as mantle xenolith-bearing basanites. Their geochemical features, such as the REE patterns, elevated HFSE contents and depleted Sr-Nd isotope signatures, indicate a relatively small degree of melting of an isotopically depleted mantle source. Their mantle-normalized trace element patterns are flat to concave and {"}bell-shaped{"}, characteristic of an OIB source free of subduction component. 87Sr/ 86Sri and 143Nd/144Nd i isotope ratios (0.7030-0.7047 and 0.5127-0.5129, respectively) indicate a depleted source for the ESPEMAR similar to the European Asthenospheric Reservoir (EAR).The HKCA-SHO rocks (30-21 Ma) occur as basalts, basaltic andesites and trachyandesites. They show enrichment in LILE and depletion in HFSE with all the distinctive features of calc-alkaline arc-type magmatism. This is coupled with somewhat enriched Sr-Nd isotope signature (87Sr/86Sr i=0.7047-0.7064, 143Nd/144 Ndi=0.5124-0.5126). All these features are characteristic of subduction-related metasomatism and fluxing of the HKCA-SHO mantle source with fluids/melts released from subducted sedimentary material.UP rocks (35-21 Ma) appear as (i) Si-rich lamproites and related rocks and (ii) olivine leucitites and related rocks. UP rocks have high-LILE/HFSE ratios with enrichment for some LILE around 1000× primitive mantle, troughs at Nb and Ti, and peaks of Pb in their mantle-normalized patterns. They also show highly fractionated REE patterns (La/Yb up to 27, LaN up to 400). The isotopic ratios approach crustal values (87 Sr/86Sri=0.7059-0.7115 and 143 Nd/144Ndi=0.5122-0.5126), and that signature is typical for ultrapotassic rocks worldwide.The Paleocene/Eocene episode and formation of the ESPEMAR is referred to as asthenospheric-derived magmatism. This magmatism originated through passive riftlike structures related to possible short relaxational phases during predominantly collisional and compressional conditions. The Oligocene/Miocene episode and formation of HKCA-SHO and UP rocks were dominated by lithospheric-controlled magmatism . Its origin is connected with the activity of a wide dextral wrench corridor generated along the axis of the Dinaride orogen which collapsed in response to thickened crust caused by earlier compressional processes.To explain conditions of these two magmatic events, a three-stage geodynamic model has been proposed: (1) subduction-termination/collision stage (Paleocene/Eocene), (2) collision stage (Eocene) and (3) postcollision/collapse stage (Oligocene/early Miocene).",
keywords = "Basanites, Dinarides, Postcollisional collapse, Serbia, Ultrapotassic",
author = "V. Cvetković and D. Prelević and H. Downes and M. Jovanović and O. Vaselli and Z. P{\'e}cskay",
year = "2004",
month = "4",
doi = "10.1016/j.lithos.2003.12.004",
language = "English",
volume = "73",
pages = "161--186",
journal = "Lithos",
issn = "0024-4937",
publisher = "Elsevier",
number = "3-4",

}

TY - JOUR

T1 - Origin and geodynamic significance of Tertiary postcollisional basaltic magmatism in Serbia (central Balkan Peninsula)

AU - Cvetković, V.

AU - Prelević, D.

AU - Downes, H.

AU - Jovanović, M.

AU - Vaselli, O.

AU - Pécskay, Z.

PY - 2004/4

Y1 - 2004/4

N2 - Tertiary basaltic magmatism in Serbia occurred through three episodes: (i) Paleocene/Eocene, when mostly east Serbian mafic alkaline rocks (ESPEMAR) formed, (ii) Oligocene/Miocene, dominated by high-K calc-alkaline basalts, shoshonites (HKCA-SHO) and ultrapotassic (UP) rocks, and (iii) Pliocene episode when rocks similar to (ii) originated. In this study, the geodynamics inferred from petrogenesis of the (i) and (ii) episodes are discussed.The ESPEMAR (62-39 Ma) occur mainly as mantle xenolith-bearing basanites. Their geochemical features, such as the REE patterns, elevated HFSE contents and depleted Sr-Nd isotope signatures, indicate a relatively small degree of melting of an isotopically depleted mantle source. Their mantle-normalized trace element patterns are flat to concave and "bell-shaped", characteristic of an OIB source free of subduction component. 87Sr/ 86Sri and 143Nd/144Nd i isotope ratios (0.7030-0.7047 and 0.5127-0.5129, respectively) indicate a depleted source for the ESPEMAR similar to the European Asthenospheric Reservoir (EAR).The HKCA-SHO rocks (30-21 Ma) occur as basalts, basaltic andesites and trachyandesites. They show enrichment in LILE and depletion in HFSE with all the distinctive features of calc-alkaline arc-type magmatism. This is coupled with somewhat enriched Sr-Nd isotope signature (87Sr/86Sr i=0.7047-0.7064, 143Nd/144 Ndi=0.5124-0.5126). All these features are characteristic of subduction-related metasomatism and fluxing of the HKCA-SHO mantle source with fluids/melts released from subducted sedimentary material.UP rocks (35-21 Ma) appear as (i) Si-rich lamproites and related rocks and (ii) olivine leucitites and related rocks. UP rocks have high-LILE/HFSE ratios with enrichment for some LILE around 1000× primitive mantle, troughs at Nb and Ti, and peaks of Pb in their mantle-normalized patterns. They also show highly fractionated REE patterns (La/Yb up to 27, LaN up to 400). The isotopic ratios approach crustal values (87 Sr/86Sri=0.7059-0.7115 and 143 Nd/144Ndi=0.5122-0.5126), and that signature is typical for ultrapotassic rocks worldwide.The Paleocene/Eocene episode and formation of the ESPEMAR is referred to as asthenospheric-derived magmatism. This magmatism originated through passive riftlike structures related to possible short relaxational phases during predominantly collisional and compressional conditions. The Oligocene/Miocene episode and formation of HKCA-SHO and UP rocks were dominated by lithospheric-controlled magmatism . Its origin is connected with the activity of a wide dextral wrench corridor generated along the axis of the Dinaride orogen which collapsed in response to thickened crust caused by earlier compressional processes.To explain conditions of these two magmatic events, a three-stage geodynamic model has been proposed: (1) subduction-termination/collision stage (Paleocene/Eocene), (2) collision stage (Eocene) and (3) postcollision/collapse stage (Oligocene/early Miocene).

AB - Tertiary basaltic magmatism in Serbia occurred through three episodes: (i) Paleocene/Eocene, when mostly east Serbian mafic alkaline rocks (ESPEMAR) formed, (ii) Oligocene/Miocene, dominated by high-K calc-alkaline basalts, shoshonites (HKCA-SHO) and ultrapotassic (UP) rocks, and (iii) Pliocene episode when rocks similar to (ii) originated. In this study, the geodynamics inferred from petrogenesis of the (i) and (ii) episodes are discussed.The ESPEMAR (62-39 Ma) occur mainly as mantle xenolith-bearing basanites. Their geochemical features, such as the REE patterns, elevated HFSE contents and depleted Sr-Nd isotope signatures, indicate a relatively small degree of melting of an isotopically depleted mantle source. Their mantle-normalized trace element patterns are flat to concave and "bell-shaped", characteristic of an OIB source free of subduction component. 87Sr/ 86Sri and 143Nd/144Nd i isotope ratios (0.7030-0.7047 and 0.5127-0.5129, respectively) indicate a depleted source for the ESPEMAR similar to the European Asthenospheric Reservoir (EAR).The HKCA-SHO rocks (30-21 Ma) occur as basalts, basaltic andesites and trachyandesites. They show enrichment in LILE and depletion in HFSE with all the distinctive features of calc-alkaline arc-type magmatism. This is coupled with somewhat enriched Sr-Nd isotope signature (87Sr/86Sr i=0.7047-0.7064, 143Nd/144 Ndi=0.5124-0.5126). All these features are characteristic of subduction-related metasomatism and fluxing of the HKCA-SHO mantle source with fluids/melts released from subducted sedimentary material.UP rocks (35-21 Ma) appear as (i) Si-rich lamproites and related rocks and (ii) olivine leucitites and related rocks. UP rocks have high-LILE/HFSE ratios with enrichment for some LILE around 1000× primitive mantle, troughs at Nb and Ti, and peaks of Pb in their mantle-normalized patterns. They also show highly fractionated REE patterns (La/Yb up to 27, LaN up to 400). The isotopic ratios approach crustal values (87 Sr/86Sri=0.7059-0.7115 and 143 Nd/144Ndi=0.5122-0.5126), and that signature is typical for ultrapotassic rocks worldwide.The Paleocene/Eocene episode and formation of the ESPEMAR is referred to as asthenospheric-derived magmatism. This magmatism originated through passive riftlike structures related to possible short relaxational phases during predominantly collisional and compressional conditions. The Oligocene/Miocene episode and formation of HKCA-SHO and UP rocks were dominated by lithospheric-controlled magmatism . Its origin is connected with the activity of a wide dextral wrench corridor generated along the axis of the Dinaride orogen which collapsed in response to thickened crust caused by earlier compressional processes.To explain conditions of these two magmatic events, a three-stage geodynamic model has been proposed: (1) subduction-termination/collision stage (Paleocene/Eocene), (2) collision stage (Eocene) and (3) postcollision/collapse stage (Oligocene/early Miocene).

KW - Basanites

KW - Dinarides

KW - Postcollisional collapse

KW - Serbia

KW - Ultrapotassic

UR - http://www.scopus.com/inward/record.url?scp=1842713126&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1842713126&partnerID=8YFLogxK

U2 - 10.1016/j.lithos.2003.12.004

DO - 10.1016/j.lithos.2003.12.004

M3 - Article

VL - 73

SP - 161

EP - 186

JO - Lithos

JF - Lithos

SN - 0024-4937

IS - 3-4

ER -