Preprints
Filtering by Subject: Earth Sciences
An alternative review of facts, coincidences and past and future studies of the Lusi eruption
Published: 2017-10-23
Subjects: Earth Sciences, Geology, Physical Sciences and Mathematics
The cause of the Lusi mud eruption remains controversial. The review by Miller and Mazzini (2017) firmly dismisses a role of drilling operations at the adjacent Banjarpanji-1 well and argues that the eruption was triggered by the Mw6.3 Yogyakarta earthquake 254 km away. We disagree with both of these conclusions. We review drilling data, and specifically the daily drilling reports, which clearly [...]
Lake Baikal isotope records of Holocene Central Asian precipitation
Published: 2017-10-23
Subjects: Earth Sciences, Geochemistry, Geology, Physical Sciences and Mathematics
Climate models currently provide conflicting predictions of future climate change across Central Asia. With concern over the potential for a change in water availability to impact communities and ecosystems across the region, an understanding of historical trends in precipitation is required to aid model development and assess the vulnerability of the region to future changes in the hydroclimate. [...]
Metrology and Traceability of U-Pb Isotope Dilution Geochronology (EARTHTIME Tracer Calibration Part I)
Published: 2017-10-23
Subjects: Earth Sciences, Geochemistry, Geology, Physical Sciences and Mathematics
Mixed 235U–233U–205Pb(–202Pb) tracers for U–Pb isotope-dilution isotope ratio mass spectrometry have been prepared under the auspices of the EARTHTIME Initiative. The methods and results for the preparation and calibration of the U/Pb ratio and isotopic abundances are given, and the various sources of uncertainty are discussed and quantified. The accuracy of the EARTHTIME U–Pb tracer isotopic [...]
The Effect Of Clay Type On The Properties Of Cohesive Sediment Gravity Flows And Their Deposits
Published: 2017-10-23
Subjects: Earth Sciences, Physical Sciences and Mathematics, Sedimentology
The present knowledge of cohesive clay-laden sediment gravity flows (SGFs) and their deposits is limited, despite clay being one of the most abundant sediment types on earth and subaqueous SGFs transporting large volumes of sediment into the ocean. Lock-exchange experiments were conducted to contrast SGFs laden with noncohesive silica flour, weakly cohesive kaolinite, and strongly cohesive [...]