Climate models and Proxy data?

I would like to know your opinion about what are currently the greatest unsolved problems or opportunities for further research in palaeoclimatology.

Ukrainian academician K.F. Tyapkin saw and explained thirty years ago how the solid shell of the earth generated a block structure. Slide 0 shows typical blocks. block sizes change discretely. the orientation of the block structure is discrete (0° and 270°; 17° and 287°; 35° and 305°; 45° and 315°; 62° and 332°; 77° and 347°). Slide 1, 2 and 3 show the Black Sea, slide 4 the Sea of ​​Azov, slide 5 the Caspian Sea, slide 6 the Baltic Sea, slide 7 the Gulf of Mexico. But surface and underwater sandy accumulative forms are not tectonic structures. Everyone knows that they are formed by waves and currents that move sand to the seabed. We have an idea, but let's discuss yours. Might be they are better.

Hi,

I'm working on Late Cretaceous carbonates in central southern atlas of Tunisia. I think that these are longitidunal sections of Rudists but I need confirmation and a more detailed description.

Thank's

Hello, everyone. I'm studying an Aptian shallow marine succession (Western Tethys) and I have come across this strange structure in one of my samples. I originally thought it was some kind of serpulid colony, but it seems radically different from the serpulid remains that commonly occur in other samples. Me and my colleagues are at a loss...

For context, this sample was taken towards the top of a shallowing-upward sequence, near a sequence boundary with subaerial exposure.

Can somebody shed some light on the subject? :-)

Like carbon isotope from fossil tooth enamel, is oxygen isotope also have some specific values to define humid or arid areas?

Help me out to identify the microfossil found in thin section of micritic limestone.

I am doing research and as part of this need to develop model real-time model

for sediment study but not getting how to start

After measuring the δ18O of forams, how to apply correction in the δ18O value caused by variations in the global ice volume, which in turn induces a change in the δ18O value of seawater and so also the calcifying foraminifera shells?

I am studying about Remote Sensing, especially the application of remote sensing in land use land cover classification. I have a little bit of experience in python programing and am looking for a good resource for learning Python for image classification of various image data. Can anyone give me such a good resource, please? Thanks in advance.

Best regards,

Duong.