[JET] JET - Jurassic Earth System and Timescale

MOCHRAS - Integrated Understanding of the Early Jurassic Earth System and Timescale

Climate & Ecosystems

Year of Application: 2015

Expedition ID: 5064

Current Status: upcoming drilling

earth system
Master Data

Dr. Thomas Wonik (PI)

Dr. Barbara Teichert (Scientific Participant)

Projektstart: 1 November, 2016
Geologisches Alter: Triassic/Jurassic

Latitude: 52°49'N


Regionen & Städte:

Shell Islands

Longitude: 4°9'W

United Kingdom


hard rock

Drilling Data

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Core Length-Drill Depth-Ratio:
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The major goal for this ICDP project is to produce a new global standard for the Early Jurassic Epoch, a time of extreme environmental change, by re-drilling a 45-year-old borehole at the Mochras Farm on the coast of Cardigan Bay, Wales, and developing an integrated timescale and stratigraphy for the cored material. Through the Early Jurassic there are well-documented examples of rapid transitions from cold, or even glacial climates, through to super-greenhouse events, the latter characterized worldwide by hugely enhanced organic carbon burial, multiple large-magnitude isotopic anomalies, global sea-level changes, and mass extinctions. These events not only reflect changes in the global climate system but are also thought to have had significant influence on the evolution of Jurassic marine and terrestrial biota. Furthermore, the events may serve as comparators for present-day and future environmental transitions. The new datasets will be applied to understand fundamental questions about the long- and short-term evolution of the Earth System. Drilling of a 2 km deep well will be executed during winter 2018/2019.

Related Publications

Hesselbo, S. P., Al-Suwaidi, A., Baker, S. J., Ballabio, G., Belcher, C. M., Bond, A., Boomer, I., Bos, R., Bjerrum, C. J., Bogus, K., Boyle, R., Browning, J. V., Butcher, A. R., Condon, D. J., Copestake, P., Daines, S., Dalby, C., Damaschke, M., Damborenea, S. E., Deconinck, J. F., Dickson, A. J., Fendley, I. M., Fox, C. P., Fraguas, A., Frieling, J., Gibson, T. A., He, T., Hickey, K., Hinnov, L. A., Hollaar, T. P., Huang, C., Hudson, A. J. L., Jenkyns, H. C., Idiz, E., Jiang, M., Krijgsman, W., Korte, C., Leng, M. J., Lenton, T. M., Leu, K., Little, C. T. S., MacNiocaill, C., Manceñido, M. O., Mather, T. A., Mattioli, E., Miller, K. G., Newton, R. J., Page, K. N., Pálfy, J., Pieńkowski, G., Porter, R. J., Poulton, S. W., Riccardi, A. C., Riding, J. B., Roper, A., Ruhl, M., Silva, R. L., Storm, M. S., Suan, G., Szűcs, D., Thibault, N., Uchman, A., Stanley, J. N., Ullmann, C. V., van de Schootbrugge, B., Vickers, M. L., Wadas, S., Whiteside, J. H., Wignall, P. B., Wonik, T., Xu, W., Zeeden, C., Zhao, K. (2023). "Initial results of coring at Prees, Cheshire Basin, UK (ICDP JET project): towards an integrated stratigraphy, timescale, and Earth system understanding for the Early Jurassic" Sci. Dril. p1-25