Page 32 - ARUBA TODAY
P. 32

A32    FEATURE
                      Friday 29 March 2019
            Israeli researchers say Sodom salt cave is world's longest




            By ILAN BEN ZION                                                                                                    wood    fragments   found
            Associated Press                                                                                                    inside   the   cave   have
            MOUNT  SODOM,  ISRAEL                                                                                               helped  date  its  formation
            (AP)  —  Israeli  researchers                                                                                       to around 7,000 years ago,
            said  Thursday  they  have                                                                                          making it extremely young
            surveyed  what  they  now                                                                                           by speleological standards.
            believe  to  be  the  world's                                                                                       "The  reason  why  it's  so
            longest  salt  cave,  a  net-                                                                                       young is because it's made
            work  of  twisting  passage-                                                                                        of  salt,"  Frumkin  explained.
            ways at the southern tip of                                                                                         "Limestone caves are much
            the Dead Sea.                                                                                                       slower  to  form.  They  are
            A  recently  completed  sur-                                                                                        usually much older. But this
            vey  of  the  Malham  Cave                                                                                          one is developing very fast
            determined  the  labyrin-                                                                                           so it's one of the youngest
            thine   cavern    stretches                                                                                         caves in the world."
            more than 10 kilometers (6                                                                                          Frumkin  said  that  studying
            miles)  in  length.  That  puts                                                                                     the  cave's  formation  has
            it  well  ahead  of  Iran's  Na-                                                                                    provided  researchers  with
            makdan  Cave,  previously                                                                                           information  about  the  cli-
            thought  to  be  the  longest                                                                                       mate  of  the  region  over
            salt cave.                                                                                                          the  past  7,000  years,  and
            The survey was conducted                                                                                            how that has affected the
            by the Hebrew University of   This Wednesday, March 27, 2019 photo, shows the entrance of the Malham Cave at the Dead Sea   emergence  of  civilization.
            Jerusalem and a collection   in Israel.                                                                             Jericho,  one  of  world's  first
            of Israeli, Bulgarian and in-                                                                      Associated Press  cities and an epicenter for
            ternational volunteers.                                                                                             the  development  of  agri-
            Boaz Langford, a research-   erally  decided  by  consen-  The  Dead  Sea  and  Mount  days measuring and map-      culture,  is  around  80  kilo-
            er at the university's Caves  sus among cave research-    Sodom  were  formed  by  ping the cavern's recesses.      meters  (50  miles)  north  of
            Research  Center,  and  An-  ers  after  an  underground  tectonic  activity,  the  shift-  "It's  above  and  beyond  the Malham Cave.
            toniya  Vlaykova,  a  Bulgar-  chamber  is  mapped  and  ing  of  the  Earth's  plates  at  what  we  expected,"  he  "Because  the  salt  is  so  sol-
            ian cave explorer from the  published.                    the  northern  end  of  the  said.                        uble,  that  means  that  ev-
            European      Speleological  Namakdan, which is about  6,000-kilometer        (4,000-  Efraim  Cohen,  one  of  the  ery  change  in  the  climate
            Federation,  headed  the  6  kilometers  (4  miles)  in  mile) Afro-Arabian Rift Val-  Hebrew  University  cave  leaves its mark in the cave,"
            expedition.                  length,  was  identified  as  ley.  Over  millions  of  years,  explorers,  described  the  Frumkin  said.  "If  there  is
            "What's  unique  about  this  the longest salt cave after  successive  flooding  of  the  process  of  locating  the  more  water,  more  rainfall,
            cave, as opposed to other  a study by Czech and Ira-      deep depression lay down  cave's  entrances  from  the  the  cave  is  enlarged,  and
            salt  caves  in  the  world,  is  nian scientists in 2006.  thick layers of salt.      surface,  rappelling  down  Dead  Sea  level  changes,
            that  it's  the  longest  in  the  Salt caves are unusual and  "The   salt   layers   are  into surface shafts, squeez-  and this makes a huge dif-
            world,"  Langford  said,  rest-  rare  geological  features.  squeezed out from the sub-  ing through tight passages,  ference in the morphology
            ing  in  a  chamber  of  the  Because salt is highly water  surface,  where  they  are  and  measuring  each  of  of the cave."
            cave  dubbed  the  "Wed-     soluble,  large  salt  depos-  deposited a few kilometers  the  cavern's  serpentine  Although     the   scientists
            ding Hall" for its salt stalac-  its  do  not  normally  survive  underground,  and  while  branches with lasers.   have    completed     their
            tites.                       long  on  the  surface.  Only  being  squeezed  out  they  Despite  the  difficult  envi-  study,  there  is  still  more  of
            Langford  and  Vlaykova  a  handful  of  salt  caves  form  a  mountain,  which  is  ronment, he said the cave's  the  cave  that  is  undiscov-
            said  they  plan  to  pub-   are larger than a kilometer  rising still today, at a rate of  splendor makes it worth it.  ered, he said.
            lish  the  complete  map  of  (half a mile) in length. Salt  about  one  centimeter  per  "All the stalagmites and sta-  "There  are  some  more
            the  cave  in  a  professional  caves  tend  to  only  exist  in  year," said Amos Frumkin, a  lactites,  their  beauty,  their  parts, especially upper lev-
            publication  in  the  coming  highly arid regions, like the  Hebrew University geologist  color — they're really white,  els,  which  have  not  been
            months.                      area around the Dead Sea,  who  has  studied  the  cave  they're   shining,   they're  surveyed yet because they
            There is no official record for  which is located at the low-  for decades.            amazing," Cohen said.        are difficult to reach," Frum-
            the longest salt cave, and  est point on earth and is too  The  Malham  Cave's  main  Radiocarbon     dating   of  kin said.q
            such designations are gen-   salty to support animal life.  outlet yawns not far from a
                                                                      salt pillar named "Lot's wife,"
                                                                      after the biblical character
                                                                      who was petrified for look-
                                                                      ing back at the destruction
                                                                      of the cities of Sodom and
                                                                      Gomorrah.  On  the  moun-
                                                                      tainside  above,  Langford,
                                                                      Vlaykova  and  their  col-
                                                                      leagues  have  identified  at
                                                                      least  19  openings  where
                                                                      seasonal  floods  have  per-
                                                                      colated through Mount So-
                                                                      dom's rock salt to form the
                                                                      cave.
            In  this  Wednesday,  March  27,  2019  photo,  Yoav  Negev,  and   Yoav Negev, founder of the   In  this  Wednesday,  March  27,  2019  photo,  Yoav  Negev,  and
            Boaz Langford, researchers at the Israel Cave Research Center   Israeli Cave Explorers Club,   Boaz Langford, researchers at the Israel Cave Research Center
            of  the  Hebrew  University  of  Jerusalem,  use  their  torch  light  to   said that over two years, his   of the Hebrew University of Jerusalem, examine salt stalactites
            examine salt stalactites hanging from the ceiling in the Malham   group and a total of 80 vol-  hanging from the ceiling in the Malham Cave at the Dead Sea
            Cave at the Dead Sea in Israel.                           unteers from nine countries   in Israel.
                                                     Associated Press  spent  around  1,500  work-                                          Associated Press
   27   28   29   30   31   32