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Title: :  Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)
PaperId: :  22494
Published in:   International Journal Of Advance Research And Innovative Ideas In Education
Publisher:   IJARIIE
e-ISSN:   2395-4396
Volume/Issue:    Volume 10 Issue 1 2024
DUI:    16.0415/IJARIIE-22494
Licence: :   IJARIIE is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author NameAuthor Institute
RAMANIRAKA Johanne IonimalalaUniversité d'Antananarivo
RAZAFIMBELO RachelUniversité d'Antananarivo
RAHANTARISOA Lydia JeanneUniversité d'Antananarivo

Abstract

Earth sciences
Stratigraphy, Anembalemba Member, Late Cretaceous, Mahajanga Basin, Paleoenvironment
The Campanian of the Mahajanga Basin is recognized by many authors as a very fossiliferous stage of the Upper Cretaceous. A large number of terrestrial vertebrates that flourished in the basin at this time have been discovered there, including dinosaurs. Previous taphonomic studies concluded that the majority of these large vertebrate fossils were collected from Facies 2 of the Anembalemba Member of the Maevarano Formation considered Campanian in age in this study. The investigations were carried out in the Lake Kinkony sector, a study area still little explored compared to that of Berivotra where outcrops of Upper Cretaceous layers including those of the Anembalemba Member abound and where dinosaur fossils and other terrestrial vertebrates are well preserved. The Anembalemba Member of the Lake Kinkony sector was then the subject of morphoscopic, mineralogical and geochemical analyses. It was deduced that the Anembalemba Member was deposited during a period of continental transgression in an alluvial plain. The climate there was hot and subtropical, as in the entire Mahajanga Basin. Following the morphology of the basin, the Maevarano Formation becomes thinner in this westernmost part of the basin, generating insufficient accommodation space for the effective burial of large terrestrial vertebrates. Also, the results of the geochemical analysis revealed that the deposits of the Anembalemba Member were exposed to the air for a quite long period, which does not allow good conservation of the fossils they contain.

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IJARIIE RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. "Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)" International Journal Of Advance Research And Innovative Ideas In Education Volume 10 Issue 1 2024 Page 971-982
MLA RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. "Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)." International Journal Of Advance Research And Innovative Ideas In Education 10.1(2024) : 971-982.
APA RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, & RAHANTARISOA Lydia Jeanne. (2024). Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin). International Journal Of Advance Research And Innovative Ideas In Education, 10(1), 971-982.
Chicago RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. "Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)." International Journal Of Advance Research And Innovative Ideas In Education 10, no. 1 (2024) : 971-982.
Oxford RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. 'Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)', International Journal Of Advance Research And Innovative Ideas In Education, vol. 10, no. 1, 2024, p. 971-982. Available from IJARIIE, https://ijariie.com/AdminUploadPdf/Characterization_and_paleoenvironment_of_the_Anamebalemba_Member_in_the_Kinkony_Lake_sector__Mahajanga_Basin__ijariie22494.pdf (Accessed : 14 December 2024).
Harvard RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. (2024) 'Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)', International Journal Of Advance Research And Innovative Ideas In Education, 10(1), pp. 971-982IJARIIE [Online]. Available at: https://ijariie.com/AdminUploadPdf/Characterization_and_paleoenvironment_of_the_Anamebalemba_Member_in_the_Kinkony_Lake_sector__Mahajanga_Basin__ijariie22494.pdf (Accessed : 14 December 2024)
IEEE RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne, "Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)," International Journal Of Advance Research And Innovative Ideas In Education, vol. 10, no. 1, pp. 971-982, Jan-Feb 2024. [Online]. Available: https://ijariie.com/AdminUploadPdf/Characterization_and_paleoenvironment_of_the_Anamebalemba_Member_in_the_Kinkony_Lake_sector__Mahajanga_Basin__ijariie22494.pdf [Accessed : 14 December 2024].
Turabian RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. "Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin)." International Journal Of Advance Research And Innovative Ideas In Education [Online]. volume 10 number 1 (14 December 2024).
Vancouver RAMANIRAKA Johanne Ionimalala, RAZAFIMBELO Rachel, and RAHANTARISOA Lydia Jeanne. Characterization and paleoenvironment of the Anembalemba Member in the Kinkony Lake sector (Mahajanga Basin). International Journal Of Advance Research And Innovative Ideas In Education [Internet]. 2024 [Cited : 14 December 2024]; 10(1) : 971-982. Available from: https://ijariie.com/AdminUploadPdf/Characterization_and_paleoenvironment_of_the_Anamebalemba_Member_in_the_Kinkony_Lake_sector__Mahajanga_Basin__ijariie22494.pdf
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