光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
Spectroscopy and Spectral Analysis
2015年
10期
2767-2772
,共6页
任佳%叶晓红%王妍%罗书琼%施光海
任佳%葉曉紅%王妍%囉書瓊%施光海
임가%협효홍%왕연%라서경%시광해
绿松石%红外光谱%二里头遗址%矿源产地特征
綠鬆石%紅外光譜%二裏頭遺阯%礦源產地特徵
록송석%홍외광보%이리두유지%광원산지특정
Turquoise%Infrared spectra%Erlitou site%Locality feature
湖北十堰是世界著名优质绿松石产地,所产松石颜色鲜艳、质地细腻。距十堰绿松石矿区直线距离300 km的河南偃师二里头遗址于2002年以来出土了大量绿松石器。有学者推测二者存在供与用玉的关系,即存在古老的“绿松石之路”。然而,为了考证该推测,并试图给出二里头松石的矿源地,本次研究以十堰地区三个矿区(秦古、文峰和云盖寺)的三组样品、及一组二里头出土样品为研究对象,通过对获得的红外光谱特征进行比对与分析。谱学特征显示,秦古、文峰和云盖寺样品红外光谱于1200~950和700~400 cm -1峰位存在细微的,但可以识别的差异。在1174 cm -1处,文峰样品中出现吸收峰,而秦古和云盖寺样品均没有出现。在700~400 cm -1范围内,文峰样品出现5个吸收峰,而秦古和云盖寺样品出现7个相似的吸收峰。二里头样品的红外光谱特征在以上峰位上与文峰绿松石差异较大,而与秦古、云盖寺松石的谱学特征相似。在1159 cm -1附近,其吸收峰特征与云盖寺样品更加吻合。利用公式A = lg (1/T ),将透射光谱值转换为吸光度光谱值,计算出二峰值相对吸收强度比值(R= A783 cm -1/A837 cm -1)。文峰、秦古、云盖寺及二里头绿松石的比值范围依次为0.819~0.920,0.870~1.010,0.806~0.860和0.827~0.878。显然,二里头与云盖寺样品重合率最高。综上,我们认为所测二里头绿松石来自于云盖寺的可能性最大,并认为用红外光谱示踪出土文物来源有一定的参考或诊断意义。
湖北十堰是世界著名優質綠鬆石產地,所產鬆石顏色鮮豔、質地細膩。距十堰綠鬆石礦區直線距離300 km的河南偃師二裏頭遺阯于2002年以來齣土瞭大量綠鬆石器。有學者推測二者存在供與用玉的關繫,即存在古老的“綠鬆石之路”。然而,為瞭攷證該推測,併試圖給齣二裏頭鬆石的礦源地,本次研究以十堰地區三箇礦區(秦古、文峰和雲蓋寺)的三組樣品、及一組二裏頭齣土樣品為研究對象,通過對穫得的紅外光譜特徵進行比對與分析。譜學特徵顯示,秦古、文峰和雲蓋寺樣品紅外光譜于1200~950和700~400 cm -1峰位存在細微的,但可以識彆的差異。在1174 cm -1處,文峰樣品中齣現吸收峰,而秦古和雲蓋寺樣品均沒有齣現。在700~400 cm -1範圍內,文峰樣品齣現5箇吸收峰,而秦古和雲蓋寺樣品齣現7箇相似的吸收峰。二裏頭樣品的紅外光譜特徵在以上峰位上與文峰綠鬆石差異較大,而與秦古、雲蓋寺鬆石的譜學特徵相似。在1159 cm -1附近,其吸收峰特徵與雲蓋寺樣品更加吻閤。利用公式A = lg (1/T ),將透射光譜值轉換為吸光度光譜值,計算齣二峰值相對吸收彊度比值(R= A783 cm -1/A837 cm -1)。文峰、秦古、雲蓋寺及二裏頭綠鬆石的比值範圍依次為0.819~0.920,0.870~1.010,0.806~0.860和0.827~0.878。顯然,二裏頭與雲蓋寺樣品重閤率最高。綜上,我們認為所測二裏頭綠鬆石來自于雲蓋寺的可能性最大,併認為用紅外光譜示蹤齣土文物來源有一定的參攷或診斷意義。
호북십언시세계저명우질록송석산지,소산송석안색선염、질지세니。거십언록송석광구직선거리300 km적하남언사이리두유지우2002년이래출토료대량록송석기。유학자추측이자존재공여용옥적관계,즉존재고로적“록송석지로”。연이,위료고증해추측,병시도급출이리두송석적광원지,본차연구이십언지구삼개광구(진고、문봉화운개사)적삼조양품、급일조이리두출토양품위연구대상,통과대획득적홍외광보특정진행비대여분석。보학특정현시,진고、문봉화운개사양품홍외광보우1200~950화700~400 cm -1봉위존재세미적,단가이식별적차이。재1174 cm -1처,문봉양품중출현흡수봉,이진고화운개사양품균몰유출현。재700~400 cm -1범위내,문봉양품출현5개흡수봉,이진고화운개사양품출현7개상사적흡수봉。이리두양품적홍외광보특정재이상봉위상여문봉록송석차이교대,이여진고、운개사송석적보학특정상사。재1159 cm -1부근,기흡수봉특정여운개사양품경가문합。이용공식A = lg (1/T ),장투사광보치전환위흡광도광보치,계산출이봉치상대흡수강도비치(R= A783 cm -1/A837 cm -1)。문봉、진고、운개사급이리두록송석적비치범위의차위0.819~0.920,0.870~1.010,0.806~0.860화0.827~0.878。현연,이리두여운개사양품중합솔최고。종상,아문인위소측이리두록송석래자우운개사적가능성최대,병인위용홍외광보시종출토문물래원유일정적삼고혹진단의의。
Shiyan district in Hubei province is a famous locality of high‐quality turquoise with brightcolor ,finegrain in the world . Erlitou archaeologicalsite ,which is about 300km north to the Shiyan Turquoise mine ,has been excavated a remarkable number of turquoise artifacts since 2002 .Some researchers infer that there was“a road of turquoise”between the two sites in history .In order to check the inference ,and identify local features of the turquoises found in Shiyan ,and Eelitou site as well ,spectra of three turquoise groups from Shiyan ,Hubei and one group of Erlitou unearthed samples were obtained by means of IR .Theirspec‐trahavevisible differences in the 1 200~950 and 700~400 cm -1 range .Peak 1 174 cm -1 appears only in samples from Wenfeng , and from 700 to 400 cm -1 ,5 peaks show in samples from Wenfeng while 7 peaks emerge from the other two sites .Turquoises in Erlitou site have similar spectra to those from Qingu and Yungaisi ,and are more similar to Yungaisi of peak around 1 159 cm -1 . According to A = lg(1/T) ,intensity of transmittance spectra were calculated and then Ratios(A783 cm -1 /A837 cm -1 ) were yielded . The ratios of samplesfrom Qingu ,Wenfeng ,Yungaisi and Erlitou site are 0.819~0.920 ,0.870~1.010 ,0.806~0.860 and 0.827~0.878 respectively ,allowing for a suggestion that turquoise in Erlitou site was the most probable from Yungaisi .This research can be used as example for identifying origin of the unearthed turquoise relics ,which is more likely a good tool for ar‐cheological research .