If you necessitate what ’s the deep trench on Earth , almost everyone would answer the Mariana Trench . They ’d be correct – at around 11,000 measure ( 36,000 foot ) , the Mariana Trench dwarfs any other pelagic trench out there . But if you asked “ what is the deepest continental trench in the world ? ” , few would be able-bodied to answer .
lie hidden beneath a grave of ice in Antarctica , a late - discovered canon beneath the Denman Glacier plummet a massive 3.5 kilometers ( 2.2 miles ) below ocean level , making it the deepest acres trench in the world .
The world’s deepest land trench
The trench ’s depth was discovered only recently , as part of a 2019 study by an international squad of glaciologists who set out to map the contours of the Antarctic continental land . The squad used ice thickness data from 19 unlike research institutes combine with lot of radar data to peek beneath Antarctica ’s glass sheet , a similar methodological analysis to what ’s been used to study Greenland in recent geezerhood .
Reported in the journalNature Geoscience , the result is the most accurate portrayal yet of Antarctica ’s contour , nickname BedMachine , which is in public accessible through theUS National Snow and Ice Data Center .
Along with the Denman Glacier – the deep oceanic abyss on land – the findings also extend a number of previously unknown topological insights into what lies beneath Antarctica ’s internal-combustion engine .
" Older maps suggested a shallower canyon [ beneath the Denman Glacier ] , but that was n’t possible ; something was missing , " booster cable author Mathieu Morlighem , associate professor of Earth system of rules science at the University of California , Irvine , said in astatementat the sentence .
function out the canon helps researcher to understand how the ice plane may answer to the changing climate and which domain of the methamphetamine may be vulnerable .
While it is deep , the trench is by no means in the same league as the deepest point on ground . The prize for the deep contrived hole goes to theKola Superdeep Boreholein Russia , reaching an astonishing 12,262 meters ( 40,230 ft ) before it was sealed . This is then travel along by Challenger Deep , the deep point of theMariana Trench , at 11 kilometers ( 6.9 Roman mile ) .
