OCR Text |
Show CORE DV- 93 20 40 50 > i Q) O 05 o - I _ Q CD „ Q- TTT AGE ( ka) 60 80 100 110 120 " i- n- i 1- r DEPTH ( m) 130 150 170 190 n r 10 20 40 60 80 100 120 Deep Lake Perennial Saline Lake Saline Pan Mudflat i\ r 340. J60 180 ( A) L • o L. Sappaensis 8 L. Staplini 2 L. Ceriotuberosa OT C. Caudata O 11 II mi ii ii nun- i mi i I Mill Mil lllllll IB): - H- - H- H- " I66± 6- High Shoreline Tufa Ages 164.6± 6.5 re 160.7± 7.7 • f 162.3± 8.0 fZ^ 160± 12. H - » - 178± 15- - 185± 15- J 207± 14- l- 216± 15- - 194± 12- 15 Gypsum Glauberite Others 50 co 40 8wt%^ 8 20 u 10 58 " S CO CO iiiiiiiiiiinin mi i iiiiiiiiiiiiiiiinii in iiinntii iiini miiHiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiinii nimmiiiiiiiiiiiiiHii -( E)- - Ht « - Thenardite - M- Polyhalite n - 2H 20 40 60 0 20 40 80 • 4H DEPTH ( m) 100 120_ - 5- H 140 160 - I 1 180 N 50 60 80 100 110 120 130 150 170 ( G) 190 AGE ( ka) Paleoclimate record, Core DV- 93, Badwater Basin, Death Valley, over the last 200 ka. ( A) Lake levels and paleoenvironments, based on relative ranking, from driest to wettest: mudflat, saline pan, perennial saline lake, and deep lake. ( B) ostracodes ( C) Uranium- series age dates of high shoreline ( about 90 m above sea level) carbonate tufas, Black Mountains. ( D) maximum homogenization temperatures of fluid inclusions in halite O"^/^)- ( E) Sulfate Minerals ( F) Weight percent calcite, determined by X- ray diffraction analysis of the > 1 micron size insoluble fraction of the core. ( G) Uranium- series ages, interpolated ages, and marine oxygen isotope stages. |