Why only the foraminifera are involved in petroleum exploration.does the foraminifera has the material which may form the petroleum after the passage of time or else?what is the chemistry involved in this?
so i want to know why only the foraminifera.(apologize for any spelling mistake)
2007-02-02 23:13:47 · 2 answers · asked by saim 1 in Science & Mathematics ➔ Earth Sciences & Geology
forams contain tiny droplets of oil inside their shells for buoancy. when they die they sink to the bottom and collect. the oil concentrates under heat and pressure. really short answer
2007-02-03 08:01:36 · answer #1 · answered by TheRockLady 4 · 0⤊ 0⤋
Hi again. I won't repeat the information I gave you about forams a few months ago describing why they are so useful for petroleum exploration. They are common and very useful but they are not the ONLY microfossils used in exploration. Diatoms, for instance, are very commonly associated with many source rocks. Microfossils such as dinoflagellates, calcareous nannofossils, palynomorphs(pollen), ostracodes, and conodonts (Paleozoic to Triassic) have all been used as biostratigraphic tools for petrolelum exploration. So have megafossils-more commonly found in outcrop than in narrow drill cores.
Petroleum is carbon-based, and most geochemists and petroleum geologists believe it has organic sources. Therefore, plankton of various kinds, including foraminifers, could contribute to its original source material.
2007-02-04 02:24:34 · answer #2 · answered by luka d 5 · 0⤊ 0⤋