|
SPECIAL CALL IODP EXPEDITION 377
|
|
|
SPECIAL CALL for a Paleogene Radiolarian Specialist to take part in IODP Expedition 377 ArcOP for both the Offshore phase and the Onshore Science party (OSP). Deadline to apply: 30 September 2021. More information: https://bit.ly/3mrFSsw
|
|
|
IODP EXPEDITION 397 & 398 CALL
|
|
|
Apply to participate in JOIDES Resolution Expeditions 397 and 398
Expedition 397: Iberian Margin Paleoclimate
6 October to 6 December 2022
The Iberian Margin has rapidly accumulating sediment that contains a high-fidelity late Pleistocene record of millennial climate variability (MCV). Sir Nickolas Shackleton demonstrated that piston cores from this region can be correlated precisely to polar ice cores from both hemispheres. Moreover, the narrow continental shelf off Portugal results in the rapid delivery of terrestrial material to the deep-sea environment, thereby allowing correlation of marine and ice core records to European terrestrial sequences. Few places exist in the world where such detailed marine-ice-terrestrial linkages are possible. The continuity, high sedimentation rates, and fidelity of climate signals preserved in sediments make this region a prime target for ocean drilling. During IODP Expedition 339, Site U1385 was drilled and recovered a complete record of hemipelagic sedimentation for the last 1.43 Ma with a mean sedimentation rate of 11 cm/kyr. IODP Expedition 397 will extend this remarkable sediment archive through the Pliocene and recover a complete depth transect of five sites that will provide a complete suite of downhole records with which to study past variability in the major subsurface water masses of the North Atlantic.
Expedition 398: Hellenic Arc Volcanic Field
6 December 2022 to 5 February 2023
The Hellenic Arc Christiana-Santorini-Kolumbo (CSK) volcanic field, which includes Santorini caldera and its Late Bronze Age eruption, provides a unique opportunity to address how subduction-related volcanism impacts life. Better understanding of island-arc volcanism requires study of the processes that drive such volcanism, and how the volcanoes interact with the marine environment. What are the links between crustal tectonics, volcanic activity, and magma genesis? What are the dynamics and impacts of submarine explosive volcanism and caldera-forming eruptions? What are the reactions of marine ecosystems to volcanic eruptions? The rift basins around the CSK field, as well as Santorini caldera, contain volcano-sedimentary fills up to several hundreds of meters thick. We propose to drill six sites, four in the rifts basins and two in Santorini caldera. Deep drilling is essential to characterize and interpret the depositional packages visible on seismic images, to chemically correlate primary volcaniclastic layers in the rift fills with their source volcanoes, to fill in gaps in onland volcanic records, to provide a precise chronostratigraphic framework for rift tectonic and sedimentary histories, and to characterize the subsurface microbial life.
For more information on the expedition science objectives and the JOIDES Resolution expedition schedule, see http://iodp.tamu.edu/scienceops/. This site includes links to individual expedition web pages with the original IODP proposals and expedition planning information.
Application deadline: 1 November 2021
MORE INFORMATION HERE: https://iodp.org.au/iodp-expedition-call-397-398/
|
|
|
IODP EXPEDITION 390 & 393 CALL
|
|
|
Call for application for JOIDES Resolution Expeditions 390 and 393
Deadline for scientists to apply: ~15 October 2021
Expedition 390: South Atlantic Transect 1 (7 April to 7 June 2022)
Expedition 393: South Atlantic Transect 2 (7 June to 7 August 2022)
South Atlantic Transect Expeditions 390 and 393 (IODP Proposals 853-Full2 and 853-Add) are a multidisciplinary and joint scientific drilling project that aims to recover complete sedimentary sections and ~200 m of oceanic crust at sites along a crustal age transect at ~31°S across the South Atlantic to (1) investigate the history of the low-temperature hydrothermal interactions between the aging ocean crust and the evolving South Atlantic Ocean; (2) quantify past hydrothermal contributions to global geochemical cycles; (3) investigate the sediment and basement-hosted microbial community in the low energy South Atlantic Gyre subseafloor biosphere; and (4) investigate the response of subtropical biota and ocean circulation in the core of the global conveyor belt and the subtropical gyre in the South Atlantic Ocean as a result of the opening of the Drake Passage.
The South Atlantic Transect expeditions will target six primary sites on 7, 15, 31, 49, and 61 Ma ocean crust. The proposed transect, which follows a Mid-Atlantic Ridge crustal flow-line, will fill critical gaps in our sampling of intact in-situ ocean crust with regards to crustal age, spreading rate, and sediment thickness. The transect traverses the previously unexplored sediment- and basalt-hosted deep biosphere beneath the South Atlantic gyre, samples of which are essential to refine global biomass estimates and investigate microbial ecosystems’ responses to variable conditions in a low energy gyre and aging ocean crust. The transect is located near World Ocean Circulation Experiment (WOCE) line A10, providing present-day carbonate chemistry and deep-water mass properties across the western South Atlantic for comparison to records of key Cenozoic intervals of elevated atmospheric CO2 and rapid climate change. Reconstruction of the history of the deep western boundary current and deep-water formation in the Atlantic basins will yield crucial data to test hypotheses regarding the role of evolving thermohaline circulation patterns in climate change, and the effects of tectonic gateways and climate on ocean acidification.
General expedition information:
Who Should Apply: We encourage applications from all qualified scientists (including graduate students) in (1) microbiology and sedimentology for Expedition 390, and (2) microbiology for Expedition 393.
Microbiology candidates with experience using sediment oxygen sensors or handling hard rock microbiology samples are encouraged. The JOIDES Resolution Science Operator (JRSO) is committed to a policy of broad participation and inclusion, and to providing a safe and welcoming environment for all participants. Good working knowledge of the English language is required.
COVID-19 Protocol: The JRSO has created a protocol to safely operate during the COVID-19 pandemic. If pandemic conditions have not improved by early-mid 2022, one or both expeditions may need to sail with a reduced shipboard contingent. However, all participants will maintain their designation as science party members regardless of whether they sail or not, and will have equal access to all expedition data and core materials. The protocol is available here: http://iodp.tamu.edu/.../JR_COVID-Mitigation-Protocols.pdf.
|
|
The ANZIC community organised a big surprise for Professor Leanne Armand our Program Director on Sunday - a scrumptious RV JOIDES Resolution chocolate cake! Leanne was overwhelmed by the surprise and sends thanks to all those involved. Chocolate cake anyone.....?
|
|
White et al., Age of magmatism and alteration of basaltic rocks cored at the base of IODP Site U1513, Naturaliste Plateau, southwestern Australia, Australian Journal of Earth Sciences
https://www.tandfonline.com/doi/full/10.1080/08120099.2021.1963840?src=
Lee et al., Petrophysical property modifications by alteration in a volcanic sequence at IODP Site U1513, Naturaliste Plateau. JGR Solid Earth
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JB021061
|
|
|
ANZIC Governing Council Meeting 21st October 2021
ANZIC Science Committee Meeting 3rd December 2021
|
|
Lab Coats and Hardhats the People behind the Expeditions in
Scientific Ocean Drilling
|
|
|
|
|
