Publication Date:
2024-04-11
Description:
Mediterranean sediments record past changes in North African aridity/humidity changes (so-called 'Green Sahara periods') on orbital timescales. These changes are reflected in the alternating accumulation of organic carbon-rich and aeolian dust enriched sediments, and negative stable oxygen isotope excursions. Here we document these changes over the past 5 million years using scanning x-ray fluorescence (XRF) of ODP Site 967 sediments, measured with a 3rd generation Avaatech XRF core scanner. Element counts were converted into element concentrations for Al [ppm], Si [ppm], S [ppm], K [ppm], Ca [ppm], Ti [ppm], Fe [ppm], Sr [ppm], Zr [ppm] and Ba [ppm], based on a multivariate log-ratio calibration.
Keywords:
160-967A; 160-967B; 160-967C; 160-967D; Africa; AGE; Aluminium; Barium; Barium/Aluminium ratio; Calcium; Core; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; dust; Eastern Basin; Event label; Green Sahara Period; Hole; Iron; Joides Resolution; Leg160; Mediterranean; Ocean Drilling Program; ODP; Pleistocene; Pliocene; Potassium; Sample code/label; sapropel; Section; Section position; Silicon; Strontium; Sulfur; Titanium; Titanium/Aluminium ratio; Type; X-ray fluorescence core scanner (XRF), Avaatech; Zirconium
Type:
Dataset
Format:
text/tab-separated-values, 227387 data points
Permalink
