Dears,
During a recent geological field study with students, we observed a structure (see image attached) and wanted to know what could the structure corresponds to. Based on its morphology and the geological context (Northwestern Oaxaca, Mexico), I assumed it could be a remnant volcanic neck. However, I am a little curious and would like to know more about the features that can make it easier to determine whether a structure is or not a volcanic neck.
We center our concern on the following two questions:
1. How could we recognize a remnant volcanic neck?
2. What features determine if the eroded volcano was placed under deep (or shallow) water or not ?
Thank you very much for your contributions.
Boris Chako Tchamabe
Have a look at Article Detection of Remnant Dust Cloud Associated with the 2007 Out...
https://books.google.com.au/books?id=bCcxDwAAQBAJ&pg=SA4-PA7&lpg=SA4-PA7&dq=remnant+volcanic+neck+detection&source=bl&ots=7mC_XZCQL_&sig=ACfU3U08L2ZGwG-zcUT1IQMEaZVa8YEMRw&hl=en&sa=X&ved=2ahUKEwj8nejmhKPoAhXKzzgGHUqlBQQQ6AEwDHoECAgQAQ#v=onepage&q=remnant%20volcanic%20neck%20detection&f=falsehttps://volcanoes.usgs.gov/vhp/gas_types.html
https://www.usgs.gov/faqs/how-can-we-tell-when-a-volcano-will-erupt?qt-news_science_products=0#qt-news_science_products
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