Asri Oktavioni Indraswari

Email: asrioktavioni(at)ui.ac.id / asrioktavioni(at)gmail.com

Bio:

My research interest and previous work has focused on mercury sedimentary geochemistry related to thermal maturation. Previously, I worked in petroleum geosciences including sedimentation processes, sub-surface sedimentary deposits model, paleoenvironment/paleogeography analysis from sediment cores, petroleum system evaluation, and reservoir quality evaluation.

I’m currently resuming my role in the Geosciences Department, Universitas Indonesia, as Assistant Professor, focusing on Sedimentary Geochemistry and Petroleum Geology. I have just finished my DPhil (PhD) at the University of Oxford on the effects of sediment thermal maturation on potential Hg fingerprints for large igneous volcanism in the sedimentary record. My project was trying to answer how Hg behaves during thermal maturation of sediments (heat-driven reactions that alter the composition of organic matter, e.g., conversion of sedimentary organic matter to petroleum or cracking of oil to gas) and what the implications are in terms of Hg mobility in sediment cores. My previous work has focused on petroleum geosciences, including sedimentation processes, sub-surface sedimentary deposits model, paleoenvironment/palaeogeography analysis from sediment cores, petroleum system evaluation, and reservoir quality evaluation.

Field of Research:

  • Hg Geochemistry
  • Petroleum Geosciences
  • Reservoir modelling

Education:

  • DPhil in Earth Sciences, University of Oxford, UK
  • MSc of Petroleum Geosciences, Institute Francais du Petrole (IFP), France
  • BSc of Geology, Institut Teknologi Bandung (ITB), Indonesia

Teaching:

  • Geochemistry
  • Vulcanology
  • Geodynamics
  • Geomorphology
  • Sedimentology
  • Petroleum Geology

Selected Publications:

  • Indraswari, A. O., Frieling, J., Idiz, E., Mather, T. A., Jenkyns, H. C., Robinson, S. A., & Dickson, A. J. (2025). Limited mercury (Hg) partitioning into bitumen and efficient gaseous Hg reabsorption in early thermal maturation of organic-rich mudrocks. Geochimica et Cosmochimica Acta. https://doi.org/10.1016/j.gca.2025.07.001
  • Indraswari, A. O., Frieling, J., Idiz, E., Mather, T. A., Dickson, A. J., Jenkyns, H. C., Robinson, S. A., Fendley, I. M., & Neilson, O. (2025). The influence of primary depositional conditions on Hg behaviour during early thermal maturation. Chemical Geology, 642, 122884. https://doi.org/10.1016/j.chemgeo.2025.122884

Websites:

University of Oxford
LinkedIn