Arash Vosoughi Moradi

8 Questions 10 Answers 0 Followers

Questions related from Arash Vosoughi Moradi

What are some reliable methods to measure the concentration of H2 gas at ppb levels?

We'll have vials in which we expect H2 generation to occur. Over the first few days, the amount of generated H2 is expected to be at ppb level. GC (+ TCD) detector is best when your H2 level is...

19 June 2024 221 3 View

What are some reliable sources to obtain pure mineral specimens?

I need specimens of some minerals in order to carry out experiments aiming to decipher fluid-rock interactions at different compositions and PT conditions. The challenge is that mineral phases...

23 March 2024 6,318 0 View

Is there any reliable paper on the relationship between stereochemistry of biomarkers and paleo-strain level a sedimentary basin was subjected to?

just wondering if there is any published material on how the stereochemistry of environmentally important biomarkers could be affected by the paleo-strain the rocks in a sedimentary basin were...

28 May 2019 5,177 2 View

Is there any direct relationship between chemical weathering at the sediments source area and sedimentation rate?

Can we conclude that sedimentation rate in a sedimentary basin increases when chemical weathering at the source area intensifies? (Lacustrine black shale)

31 December 2015 7,082 4 View

Could anyone recommend a paper on the relationship between d13C(org) stable isotope and Paleoproductivity in black shales (Lacustrine setting)?

I have read in several papers that lighter d13C(org) may be indicative of terrigenous input (landplant) and/or microbial activity (Biodegradation). Some scientists also use d13C(org) value as a...

31 December 2015 3,932 3 View

What is the appropriate background to normalize rare-earth element values of coal samples?

I study the REE geochemistry of coal samples. Different REE-distribution patterns is drawn when the different background value is selected. There is a negative Ce anomaly when I use chondrite,...

12 December 2014 5,854 18 View

Which factors influence the S4 (RC) peak of Rock-Eval 6?

I am investigating the role and effect of OM and its type in the uptake of trace elements in sediment-water interfaces. I would like to know why there are differences in the S4 value (measured in...

01 April 2014 4,863 6 View

How do I correct the CaO value for carbonate and phosphate?

To calculate CIA and also plot the data on A-CN-K ternary diagram, I need to know the CaO in silicate minerals only, so reliable correcting method.

16 February 2014 7,332 7 View