1 research outputs found
New paleogeography data of the eastern coast of Green fjord (West Spitsbergen Island) based on research of the holocene deposits on Finneset cape with use of isotope-geochemical methods
ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π·Π°ΠΊΠ»ΡΡΠ°Π΅ΡΡΡ Π² ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ Π²ΠΎΠ·ΡΠ°ΡΡΠ° ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² Π² Π·Π°Π»ΠΈΠ²Π΅ ΠΡΠ΅Π½-ΡΡΠΎΡΠ΄ Π½Π° Π°ΡΡ
ΠΈΠΏΠ΅Π»Π°Π³Π΅ Π¨ΠΏΠΈΡΠ±Π΅ΡΠ³Π΅Π½ ΠΈ ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΡΠ΅Π΄Ρ ΠΈΡ
ΠΎΠ±ΠΈΡΠ°Π½ΠΈΡ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠ³ΡΠΎΠ·Ρ ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±Π½Π°ΠΆΠ΅Π½ΠΈΠΉ Ρ Π½Π°Ρ
ΠΎΠ΄ΡΡΠΈΠΌΠΈΡΡ Π² Π½ΠΈΡ
ΠΌΠΎΠ»Π»ΡΡΠΊΠ°ΠΌΠΈ ΠΈ ΠΊΠΎΡΡΠ½ΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ ΠΏΡΠΈΡ ΠΈ ΡΡΠ± Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π°ΠΊΡΠΈΠ²Π½ΠΎ ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΠΈΡ
ΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π±Π΅ΡΠ΅Π³ΠΎΠ²ΠΎΠΉ ΡΠ΅ΡΠΌΠΎΠ°Π±ΡΠ°Π·ΠΈΠΈ ΠΈ ΡΠ΅Ρ
Π½ΠΎΠ³Π΅Π½Π½ΠΎΠΉ Π½Π°Π³ΡΡΠ·ΠΊΠΈ ΠΊΠΎΠΌΠ±ΠΈΠ½Π°ΡΠ° Β«ΠΡΠΊΡΠΈΠΊΡΠ³ΠΎΠ»ΡΒ». Π¦Π΅Π»Ρ: ΡΠ΅ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΡΠ΅Π΄Ρ ΠΎΠ±ΠΈΡΠ°Π½ΠΈΡ ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² Π² Π³ΠΎΠ»ΠΎΡΠ΅Π½Π΅ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π²ΠΈΠ΄ΠΎΠ²ΠΎΠΉ ΠΏΡΠΈΠ½Π°Π΄Π»Π΅ΠΆΠ½ΠΎΡΡΠΈ ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΈΠ·ΠΎΡΠΎΠΏΠ½ΠΎ-Π³Π΅ΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΡΠ°ΠΊΠΎΠ²ΠΈΠ½ ΠΈ Π²ΠΌΠ΅ΡΠ°ΡΡΠΈΡ
ΠΈΡ
Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄. ΠΠ΅ΡΠΎΠ΄Ρ: ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π²ΠΈΠ΄ΠΎΠ²ΠΎΠΉ ΠΏΡΠΈΠ½Π°Π΄Π»Π΅ΠΆΠ½ΠΎΡΡΠΈ ΡΠ°ΠΊΠΎΠ²ΠΈΠ½ ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π°; ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΡΠ°ΠΊΠΎΠ²ΠΈΠ½ ΠΏΡΡΠ΅ΠΌ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎΠ³ΠΎ Π²ΡΠΊΡΡΡΠΈΡ; ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΠΌΠ°ΠΊΡΠΎ- ΠΈ ΠΌΠΈΠΊΡΠΎΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² Π½Π° ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ΅ Ρ ΠΈΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΠΎ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠΉ ΠΏΠ»Π°Π·ΠΌΠΎΠΉ Aurora Elite ΡΠΈΡΠΌΡ Bruker (ΠΠ΅ΡΠΌΠ°Π½ΠΈΡ) ΠΈ Π½Π° Π²ΠΎΠ»Π½ΠΎΠ΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΎΠΌ ΡΠ΅Π½ΡΠ³Π΅Π½ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΠΎΠΌ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ΅ LabCenter XRF-1800; ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΉ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΡΡ
ΠΈΠ·ΠΎΡΠΎΠΏΠΎΠ² Π½Π° ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ΅ Finningan ΠΠΠ’253; ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π²ΠΎΠ·ΡΠ°ΡΡΠ° ΡΠ°ΠΊΠΎΠ²ΠΈΠ½ ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² Π½Π° ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ½ΠΎΠΌ Π½ΠΈΠ·ΠΊΠΎΡΠΎΠ½ΠΎΠ²ΠΎΠΌ ΡΡΠΈΠ½ΡΠΈΠ»Π»ΡΡΠΈΠΎΠ½Π½ΠΎΠΌ ΡΡΠ΅ΡΡΠΈΠΊΠ΅. ΠΠ±ΡΠ΅ΠΊΡΡ: ΡΠ΅ΡΠ²Π΅ΡΡΠΈΡΠ½ΡΠ΅ ΠΎΡΠ»ΠΎΠΆΠ΅Π½ΠΈΡ Π±Π΅ΡΠ΅Π³ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΠ»ΠΈΡΠ° ΠΌΡΡΠ° Π€ΠΈΠ½Π½ΠΈΡΠ΅Ρ (Π·Π°Π»ΠΈΠ² ΠΡΡΠ½-ΡΡΠΎΡΠ΄, Π°ΡΡ
. ΠΠ°ΠΏΠ°Π΄Π½ΡΠΉ Π¨ΠΏΠΈΡΠ±Π΅ΡΠ³Π΅Π½), ΡΠ°ΠΊΠΎΠ²ΠΈΠ½Ρ Π΄Π²ΡΡΡΠ²ΠΎΡΡΠ°ΡΡΡ
ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈ ΠΈΡ
ΡΡΠ°Π³ΠΌΠ΅Π½ΡΡ Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½Π½ΡΠ΅ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡ ΠΌΠ°ΠΊΡΠΎΡΠ°ΡΠ½Ρ, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Π½ΡΠ΅ Π΄Π²ΡΡΡΠ²ΠΎΡΡΠ°ΡΡΠΌΠΈ ΠΌΠΎΠ»Π»ΡΡΠΊΠ°ΠΌΠΈ (Hiatella arctica, Mytilus edulis, Tridonta borealis, Mya truncata). ΠΠΏΠ΅ΡΠ²ΡΠ΅ Π΄Π»Ρ ΠΌΡΡΠ° Π€ΠΈΠ½Π½ΠΈΡΠ΅Ρ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ Π²ΠΎΠ·ΡΠ°ΡΡ ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΡΡ
ΡΠ°ΠΊΠΎΠ²ΠΈΠ½ ΠΌΠΎΡΡΠΊΠΈΡ
ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ², ΠΊΠΎΡΠΎΡΡΠΉ ΡΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ ΠΎΡ 7970 Π΄ΠΎ 8050 ΠΊΠ°Π». Π»Π΅Ρ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΌΠΎΠ»Π»ΡΡΠΊΠΈ, Π½Π°ΠΉΠ΄Π΅Π½Π½ΡΠ΅ Π² Π½ΠΈΠΆΠ½ΠΈΡ
ΡΠ»ΠΎΡΡ
, ΠΎΠ±ΠΈΡΠ°Π»ΠΈ Π² Π±ΠΎΠ»Π΅Π΅ ΡΠ΅ΠΏΠ»ΠΎΠΉ ΡΡΠ΅Π΄Π΅ ΡΠ΅ΠΌ ΡΠ΅, ΡΡΠΎ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½Ρ Π² Π²ΡΡΠ΅Π»Π΅ΠΆΠ°ΡΠΈΡ
. Π Π΅ΠΊΠΎΠ½ΡΡΡΡΠΈΡΠΎΠ²Π°Π½Ρ ΡΠ΅Π΄ΠΎΠΊΡ-ΡΡΠ»ΠΎΠ²ΠΈΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Ni/Co Π² ΠΏΡΠ΅Π΄Π΅Π»Π°Ρ
ΠΎΡ 1,5 Π΄ΠΎ 9 Π΅Π΄ΠΈΠ½ΠΈΡ ΠΈ V/Cr ΠΌΠ΅Π½Π΅Π΅ 2 Π΅Π΄ΠΈΠ½ΠΈΡ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ U, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½ΡΠ΅ΡΡΡ Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΎΡ 0,2 ΠΌΠ³ Π΄ΠΎ 4 ΠΌΠ³. ΠΠ½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π‘u/Cr Π² ΡΠ°Π·ΡΠ΅Π·Π΅ ΠΏΠΎΠΊΠ°Π·Π°Π», ΡΡΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ ΠΎΡ ΠΎΠ±Π»Π°ΡΡΠΈ ΡΠ½ΠΎΡΠ° Π΄ΠΎ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΎΡΠ°Π΄ΠΊΠΎΠ½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΡ ΠΈΠ·ΠΌΠ΅Π½ΡΠ»ΠΎΡΡ Π½Π΅Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ. Π‘ΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Zn Π² Π³ΠΎΡΠ½ΠΎΠΉ ΠΏΠΎΡΠΎΠ΄Π΅ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΠ΅Ρ ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠ΅Π³ΡΠ΅ΡΡΠΈΠΈ ΠΌΠΎΡΡ ΠΈ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠΈ ΠΊΠΎΠ½ΡΠΈΠ½Π΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΠΆΠΈΠΌΠ° ΠΎΡΠ°Π΄ΠΊΠΎΠ½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΡ Π½Π°Π΄ ΠΌΠΎΡΡΠΊΠΈΠΌ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ Mn Π² ΡΠ°ΠΊΠΎΠ²ΠΈΠ½Π°Ρ
ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΎ, ΡΡΠΎ ΠΎΠ½ΠΈ ΠΎΠ±ΠΈΡΠ°Π»ΠΈ Π² ΠΏΡΠΈΠ±ΡΠ΅ΠΆΠ½ΠΎ-ΠΌΠΎΡΡΠΊΠΎΠΉ Π·ΠΎΠ½Π΅ Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π°.The relevance of the research consists in determining the age of mollusks in the Green fjord bay of West Spitsbergen Island and physical and chemical parameters of their habitant environment in conditions of the threat of destruction of geological outcrops as a result of actively developing processes of coastal thermo-abrasion and man-made load of Β«ArcticugolΒ» combine. The main aim of the research is to reconstruct physical and chemical parameters of mollusks habitant environment in Holocene based on determination of mollusks species and research of isotope-geochemical composition of shells and their host rocks. Methods. Mollusk species were identified using morphological method and decomposition of shell samples - by acid dissection. Content of microelements and microelements was determined on Aurora Elite inductively coupled plasma mass spectrometer (Bruker, Germany) and on LabCenter XRF-1800 wavelength X-ray fluorescence spectrometer and stable isotope ratios - on Finningan MAT253 mass spectrometer. Age of mollusk shells was identified on liquid low-background scintillation counter. Objects of the research are quaternary sediments of the coastal cliff of Finniset cape (Green fjord bay, West Spitsbergen Island), shells of bivalve mollusks and their fragments. Results. The authors have identified the detected macrofauna complexes represented by bivalve mollusks (Hiatella arctica, Mytilus edulis, Tridonta borealis, Mya truncata) and the age of fossil shells of marine mollusks for Finniset cape, which are from 7970 to 8050 years old. It was established that the mollusks found in lower layers lived in a wormer climate than those found in the overlying layers. The authors reconstructed redox conditions using Ni/Co ratios ranging from 1,5 to 9 units and V/Cr less than 2 units. Content of the U was detected in range from 0,2 mg to 4 mg. An analysis of the Cu/Cr ratio in the outcrop shows that the distance from the area of denudation to the sedimentation area changed insignificantly. Zn concentration in sediments indicates the temporal regression of the sea and predominance of continental sedimentary regime over sea regime. Determination of Mn content in mollusk shells shown, that they lived in coastal-marine zone with high oxygen content