Results 11 to 20 of about 1,747 (174)
An evaluation of methodologies for calibrating Itrax X-ray fluorescence counts with ICP-MS concentration data for discrete sediment samples [PDF]
Chemical Geology, 2019 Abstract Core-scanning X-ray Fluorescence (XRF-CS) is a well-established technique for rapid ( 30 replicate analyses for up to 180 samples in a single XRF-CS run. These replicate measurements allow for rigorous testing of precision and accuracy of XRF-CS data.
Gregory, Braden R.B. +4 more
openaire +5 more sources
A new method for dating tree-rings in trees with faint, indeterminate ring boundaries using the Itrax core scanner [PDF]
Palaeogeography, Palaeoclimatology, Palaeoecology, 2018 Abstract Eastern Australia is known to experience multi-decadal periods of flood and drought. Subtropical Southeast Queensland is one region where these devastating extreme events occur regularly yet a full understanding of their frequency and magnitude cannot be determined from the short duration ( 100 years) proxy rainfall information but locating ...
Heather A. Haines +5 more
openaire +3 more sources
Geochemistry, Geophysics, GeosystemsHolocene sea‐level reconstructions from tidal marshes are commonly derived from proxy indicators that have a consistent and quantifiable relationship with tidal elevation.
Anthony Giang +11 more
doaj +2 more sources
Geological Society, London, Special Publications, 2006 Abstract The upper part (0–20 m) of a long piston core from the SE Balearic Abyssal Plain — spanning the past 50 ka — has been studied using the ITRAX micro-XRF core scanner to obtain downcore elemental profiles. The Ca/Fe ratio was found to be an effective parameter to distinguish between turbidites and pelagites, because turbidites ...
Rothwell, R +4 more
openaire +5 more sources
Progress in Earth and Planetary Science, 2021 The southwestern Ryukyu Trench represents the ultimate sink of sediments shed from Taiwan into the Philippine Sea, which are mainly transported to the trench by turbidity currents via submarine canyons.
Kan-Hsi Hsiung +8 more
doaj +1 more source
Geoscience Letters, 2023 The southwestern Ryukyu Trench is an ideal place for investigating sediment transport from the Taiwan mountain belt to the Ryukyu Trench floor. To study the characteristics of trench turbidites and sediment transport along the trench, we utilize two ...
Kan-Hsi Hsiung +4 more
doaj +1 more source
Diversity, 2023 In dendrochemical studies, an analysis of wooden cores extracted from tree stems is a widely spread research method. A methodological problem is related to the method: whether a single core per tree can be representative of all the stems. The study aimed
Vladimir L. Gavrikov +4 more
doaj +1 more source
Three thousand year paleo-tsunami history of the southern part of the Japan Trench
Progress in Earth and Planetary Science, 2021 This study conducted a field survey and multiproxy analyses on sediment cores retrieved from the Kobatake-ike pond in Choshi City, Chiba Prefecture, Japan.
Hokuto Higaki +4 more
doaj +1 more source
Early-Wood vs. Late-Wood in Scots Pine: Finding Stable Relationships in Elemental Distribution
Sci, 2023 This study explored whether consistent differences can be found between early-wood and late-wood in terms of elemental content of tree rings. The species to study was Pinus sylvestris L. growing within an even-aged stand planted during the early 1970s in
Vladimir L. Gavrikov +4 more
doaj +1 more source
Frontiers in Environmental Science, 2023 In micro-densitometry of wood it is standard procedure to extract resin and other soluble compounds before X-ray analysis to eliminate the influence of these extractives on wood-density.
T. Scharnweber +6 more
doaj +1 more source