Rekonstruksi Batimetri Dan Iklim Purba Berdasarkan Foraminifera Daerah Ralla Barru, Sulawesi Selatan Indonesia

Farida, Meutia; Fitriana, Tati; Nugraha, Jimmi

doi:10.31172/jmg.v17i2.443

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Penelitian detail mengenai endapan karbonat batugamping Formasi Tonasa terutama hasil "redeposite" di daerah Ralla, Kabupaten Barru telah dilakukan [8], dan selanjutnya dijelaskan bahwa paparan karbonat di Barru dan Jeneponto (daerah Nasara) adalah sebuat platform-top dan ramp [9]. Rekonstruksi batimetri dan iklim purba juga telah dilakukan di daerah Ralla Kabupaten Barru dengan menggunakan foraminifera bentonik [10], dan distribusi nanofosil serta aplikasinya sebagai data awal telah dilakukan di daerah ini [11].…”

Section: Pendahuluanunclassified

Iklim Purba Pada Lingkungan Karbonat Formasi Tonasa Berdasarkan Foraminifera Planktonik, Sulawesi Selatan

Farida¹,

Jaya²,

Alimuddin³

et al. 2022

JMG

Self Cite

View full text Add to dashboard Cite

Foraminifera planktonik adalah salah satu proxy dalam penentukan iklim, termasuk iklim purba. Organisme ini memiliki sebaran geografi yang luas, dan beberapa spesies hidup pada kondisi iklim tertentu, sehingga keberadaan fosil ini sangat baik digunakan untuk interpretasi perubahan iklim dari masa ke masa. Formasi Tonasa memiliki sebaran geografi yang luas di Sulawesi Selatan, terdiri atas batuan karbonat yang terbentuk dari mineral karbonat dan organisme laut diantaranya adalah foraminifera, yang dapat merekam kondisi iklim ketika batuan ini terendapkan. Pengambilan data singkapan menggunakan metode Stratigrafi Terukur pada perselingan napal dan batugamping di Barru (Lintasan Sungai Palakka) dan Jeneponto (Lintasan Karama B). Aktivitas selanjutnya adalah preparasi sampel, observasi, identifikasi dan determinasi umur berdasarkan pemunculan awal dan pemunculan akhir spesies. Hasil identifikasi foraminifera planktonik di daerah Barru diperoleh sebanyak 12 spesies:

show abstract

Section: Pendahuluanunclassified

Iklim Purba Pada Lingkungan Karbonat Formasi Tonasa Berdasarkan Foraminifera Planktonik, Sulawesi Selatan

Farida¹,

Jaya²,

Alimuddin³

et al. 2022

JMG

Self Cite

View full text Add to dashboard Cite

show abstract

“…The Tonasa carbonate platform is included in a Cenozoic tropi-cal carbonate production. Several previous studies on the Tonasa Formation have conducted by many researchers, particularly regarding paleontological data which were observed by Leeuwen (1981), Sukamto (1982), Wilson and Bosence (1996), Farida et al (2016), andFarida et al (2019). The Tonasa Formation was developed in a shallow marine carbonate platform (Sukamto, 1982;Wilson and Bosence, 1996;Wilson and Bosence, 1997).…”

Section: Introductionmentioning

confidence: 99%

Calcareous Nannofossil Biostratigraphy of Tonasa Formation at Barru River Traverse, South Sulawesi, Indonesia

Farida

Jaya

Nugraha

2022

Indonesian J. Geosci.

View full text Add to dashboard Cite

Barru is one of the areas in South Sulawesi where the stratigraphic sequences of lithology from Mesozoic to recent are well exposed. The Tonasa Formation is quite widespread in this area, and it is interesting to find out its various aspects related to the carbonate rock development. For this reason, the distribution of nannofossils were recorded and the relative age of Tonasa Formation was determined using nannofossil collected by measuring section at Barru River. The calcareous nannofossil assemblages are moderate to poor preserved. A total of twenty-three species were identified from the bottom to the top of the interbedded marl and limestone. The nannofossil assemblage-based biostratigraphy of the studied area was shown by the First Occurrence (FO) and Last Occurrence (LO) of the marker species. As for the results, there were six data found in this study, i.e. FO and LO of Reticulofenestra umbilicus, FO of Sphenolithus pseudoradians, LO of Discoaster saipanensis, LO of Calcidiscus formosus, and LO Reticulofenestra bisectus 15 -NN 1 or CP 13 -CN 1a, and equivalent to Middle Eocene until Early Miocene. The result shows important data that will contribute significantly in age constraint of Tonasa Formation.

show abstract

Rekonstruksi Batimetri Dan Iklim Purba Berdasarkan Foraminifera Daerah Ralla Barru, Sulawesi Selatan Indonesia

Cited by 2 publications

References 0 publications

Iklim Purba Pada Lingkungan Karbonat Formasi Tonasa Berdasarkan Foraminifera Planktonik, Sulawesi Selatan

Iklim Purba Pada Lingkungan Karbonat Formasi Tonasa Berdasarkan Foraminifera Planktonik, Sulawesi Selatan

Calcareous Nannofossil Biostratigraphy of Tonasa Formation at Barru River Traverse, South Sulawesi, Indonesia

Contact Info

Product

Resources

About