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We report on a dusty Mg~II absorber associated with the quasarSDSSJ003545.13+011441.2 (hereafter J0035+0114) at $z$=1.5501, which is thestrongest one among the three Mg~II absorbers along the sight line of quasar.The two low redshift intervening absorbers are at $z$=0.7436, 0.5436,respectively. Based on the photometric and spectroscopic data of Sloan DigitalSky Survey (hereafter SDSS), we infer the rest frame color excess E(\bv) due tothe associated dust is more than 0.07 by assuming a Small Magellanic Cloud(hereafter SMC) type extinction curve. Our follow-up moderate resolutionspectroscopic observation at the 10-m Keck telescope with the ESI spectrometerenable us to reliably identify most of the important metal elements, such asZn, Fe, Mn, Mg, Al, Si, Cr, and Ni in the associated system. We measure thecolumn density of each species and detect significant dust depletion. Inaddition, we develop a simulation technique to gauge the significance of2175-{\AA} dust absorption bump on the SDSS quasar spectra. By using it, weanalyze the SDSS spectrum of J0035+0114 for the presence of a associated2175-{\AA} extinction feature and report a tentative detection at$\sim$2$\sigma$ significant level.

A Dusty Mg~II absorber Associated with the Quasar SDSS J003545.13+011441.2