PP023
Pliocene-Pleistocene low-latitude weathering, cooling, and sea-level change: Advances in the Sunda Shelf and its adjacent regions

Session ID#: 158115

Session Description:
The Earth has been cooling throughout Pliocene-Pleistocene epochs, leading to the development of Northern Hemisphere ice sheets at ~2.7 Ma. Since then, the cooling has been punctuated by recurring ice ages, i.e., alternating between interglacial and glacial stages. The emergence of the low-latitude Southeast Asian islands (called “Maritime Continent”) might have driven this cooling trend through intensifying the chemical weathering of basaltic silicates, increasing atmospheric CO2 consumption, and thus cooling the planet subsequently by forming the ice sheets. Located in the western part of the Maritime Continent, the Sunda Shelf was exposed and submerged by the repeated influence of eustatic sea-level fluctuations, allowing the development of large paleo-drainage systems and widespread marine vegetations during sea-level lowstand periods. The Sunda Shelf is the largest tropical shelf in the world and has been very tectonically stable since the late Miocene. The shelf is therefore particularly well-suited for reconstructing low-latitude weathering, sea-level change, and carbon cycling evolution over the past 5 Ma. This session is expected to gather multiple time-scale study approaches on the chemical weathering, paleo-drainage system, and eustatic sea-level fluctuation strongly associated with the Pliocene-Pleistocene Maritime Continent evolution, especially on the Sunda Shelf and its adjacent regions. Studies on short time scales since the late Pleistocene and the present-day are also welcomed.
Co-Organized:
  • OS - Ocean Sciences
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
1641 Sea level change [GLOBAL CHANGE]
4219 Continental shelf and slope processes [OCEANOGRAPHY: GENERAL]
5415 Erosion and weathering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Primary Convener:  Zhifei Liu, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China
Conveners:  Christophe Colin, Université Paris-Saclay, Laboratoire Geosciences Paris-Saclay (GEOPS), Orsay, France, Thanawat Jarupongsakul, Chulalongkorn University, Department of Geology, Faculty of Science, Bangkok, Thailand and Pengfei Ma, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China
 
Carbon Sequestration of the Middle Miocene Sunda Shelf Facilitated Global Climate Change (1055086)
Pengfei Ma, Tongji University, Shanghai, China, Zhifei Liu, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, Meichen Jiang, East China Normal University, Shanghai, China and Han Cheng, China University of Geosciences, Beijing, Beijing, China
 
Testing Pliocene-Pleistocene Climate Change Hypothesis: A Proposal for Drilling in the Tropical Sunda Shelf (1077584)
Zhifei Liu1, Till Jens Joerg Hanebuth2, Christophe Colin3, Thanawat Jarupongsakul4, Nugroho Hananto5, Edlic Sathiamurthy6, Pengfei Ma1, Karl Stattegger7 and Pinxian Wang1, (1)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (2)Coastal Carolina University, Department of Marine Science, Conway, United States, (3)Université Paris-Saclay, Laboratoire Geosciences Paris-Saclay (GEOPS), Orsay, France, (4)Chulalongkorn University, Department of Geology, Faculty of Science, Bangkok, Thailand, (5)National Research and Innovation Agency, Jakarta Pusat, Indonesia, (6)Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Kuala Terengganu, Malaysia, (7)University of Kiel, Institute of Geosciences, Kiel, Germany
 
The Bengal Fan turbidite record of Himalayan erosion and weathering (1107385)
Christian France-Lanord1, Albert Galy1, Jerome Lave1, Sebastien Lenard2, Thomas Rigaudier1 and Aswin Pradeep Tachambalath1, (1)Université de Lorraine - CNRS, CRPG Centre de Recherches Pétrographiques et Géochimiques, Vandœuvre-lès-Nancy, France, (2)University of Colorado Boulder, CIRES, Boulder, United States
 
Geological Perspectives of Future Sea-Level Rise in Singapore (1198328)
Timothy Shaw1, Trina Ng2, Tanghua Li1, Stephen Chua1, Jedrzej Majewski3, Niamh Cahill4, Gregory Garner5, Robert E Kopp6, Till Jens Joerg Hanebuth7, Adam D Switzer2 and Benjamin Peter Horton1, (1)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (2)Earth Observatory of Singapore, Singapore, Singapore, (3)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (4)Maynooth University, Department of Mathematics and Statistics, Kildare, Ireland, (5)Institute of Earth, Ocean, and Atmospheric Sciences, Rutgers University, New Brunswick, United States, (6)Rutgers University New Brunswick, Institute of Earth, Ocean, and Atmospheric Sciences, New Brunswick, NJ, United States, (7)Coastal Carolina University, Department of Marine Science, Conway, United States
 
Sunda Shelf：Another Amazonia in ice age？ (Invited) (1042810)
Pinxian Wang, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China
See more of: Paleoceanography and Paleoclimatology
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