CENTENNIAL-SCALE EAST ASIAN MONSOON PRECIPITATION RECORD OVER 140~124 kaBP FROM A STALAGMITE IN SHENNONGJIA
-
摘要: 基于神农架山宝洞SB28石笋230Th年龄和氧同位素数据,建立了140~124 kaBP百年尺度的东亚季风降水序列,其长期演化趋势与北纬33°夏季日辐射能量曲线基本一致。山宝洞SB28石笋与董哥洞D4石笋δ18O曲线呈现出整体一致的特征,证实了亚洲季风降水同位素组成变化具有广泛的区域意义。末次间冰期129.5~124.3 kaBP季风降水具有百年尺度高频振荡特征,功率谱分析周期有525、228和207 a,类似于全新世大气△14C残差百年尺度周期,表明末次间冰期亚洲季风强度的变化仍然受太阳活动的影响。在倒数第二次冰期向末次间冰期转换时,北半球太阳辐射可能触发了全球末次间冰期全盛期的开始。Abstract: 230Th ages and oxygen isotope data of a stalagmite from Shanbao Cave in Hubei Province characterize the East Asian Monsoon precipitation from 140 to 124 kaBP. The record broadly follows 33°N summer insolation. Similar changing trend was observed in the two δ18O curves derived from the Shanbao Cave and Dongge Cave, which proved the changes of the oxygen composition of the Asian Monsoon precipitation have the generally regional meanings. During the Last Interglacial period (129.5~124.3 kaBP), SB28 δ18O record shows high frequency fluctuation. Power spectral analysis of the record shows statistically significant centennial periodicities centered on 525, 228 and 207 a. These periodicities are close to significant periods of the △14C record, indicating that solar changes are also responsible for changes of Asian Monsoon intensity. During the transition from the Penultimate Glaciation to the Last Interglaciation, the North Hemisphere insolation possible triggers the inception of full interglacial conditions worldwide.
-
Keywords:
- stalagmite /
- centennial-scale /
- monsoon-precipitation /
- Shennongjia
-
-
[1] Yuan D X, Cheng H, Edwards R L, et al. Timing, duration, and transitions of the Last Interglacial Asian Monsoon[J]. Science, 2004, 304:575-578.
[2] Alley R B, Meese D A, Shuman C A, et al. Abrupt accumulation increase at the Younger Dryas termination in the GISP2 ice core[J]. Nature, 1993, 362:527-529.
[3] Wang Y J, Cheng H, Edwards R L, et al. A high-resolution absolute-dated Late Pleistocene Monsoon recoed from Hulu cave, China[J]. Science, 2001, 294:2345-2348.
[4] Litt T, Brauer A, Goslar T, et al. Correlation and synchronization of late glacial continental sequences in northern central Europe based on annually laminated lacustrine sediments[J]. Quaternary Science Reviews, 2001, 20:1233-1249.
[5] 朱兆泉, 宋朝枢. 神农架自然保护区科学考察集[M]. 北京:中国林业出版社,1999:38-41.[ZHU Zhao-quan, SONG Chao-shu. Scientific Survey of Shennongjia Natural Conservation[M]. Beijing:China Forestry Publishing House, 1999:38 -41.]
[6] 姜修洋, 汪永进, 孔兴功, 等. 130 kaBP左右东亚季风突变过程的洞穴石笋记录[J]. 科学通报, 2005, 50(23):2644-2648. [JIANG Xiu-yang, WANG Yong-jin, KONG Xing-gong, et al. Abrupt climate change of East Asian Monsoon at 130 kaBP inferred from a high resolution stalagmite δ18O record[J]. Chinese Science Bulletin,2005, 50(23):2765-2769.]
[7] SHEN Chuan-chen, Edwards L R, Cheng H. Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry[J]. Chemical Geology, 2002, 185:165-178.
[8] Wang Y J, Cheng H, Edwards R L, et al. The Holocene Asian Monsoon:links to solar changes and North Atlantic climate[J]. Science, 2005, 308:854-857.
[9] Gonfiantini K, Roche M A, Olivry J C. The altitude effect on the isotope composition of tropical rains[J]. Chemical Geology, 2001, 181:147-167.
[10] GRIP Project Members. Climate instability during the last interglacial period in the GRIP ice core[J]. Nature, 1993, 364:203-207.
[11] Dansgaard W, Johnsen S J, Clausen H B, et al. Evidence for general instability of past climate from a 250 kyr ice core record[J]. Nature, 1993, 364:218-220.
[12] Alley R B. Comparison of deep ice cores[J]. Nature, 1995, 373:393-394.
[13] Grootes P M, Stuiver M, White J, et al. Comparison of oxygen isotope records from the GISP2 and GRIP Greenland ice cores[J]. Nature, 1993, 366:552-554.
[14] Fuchs A, Leuenberger M C. δ18O of atmospheric oxygen measured on the GRIP ice core document stratigraphic disturbances in the lowest 10% of the core[J]. Geophys. Res. Lett., 1996, 23:1049-1052.
[15] North Greenland Ice Core Project Members. High-resolution record of Northern Hemisphere climate extending into the last interglacial period[J]. Nature, 2004, 431:147-151.
[16] Frogley M R, Tzedakis P C, Heaton T H E. Climate variability in northwest Greece during the Last Interglacial[J]. Science, 1999, 285:1886-1889.
[17] Field M H, Huntley B, Muller H. Permian climate fluctuations observed in a European pollen record[J]. Nature, 1994, 371:779-783.
[18] Linsley B K. Oxygen-isotope record of sea level and climate variations in Sulu Sea over the past 150000 years[J]. Nature, 1996, 380:234-237.
[19] Fronval T, Jansen E. Rapid changes in ocean circulation and heat flux in the Nordic seas during the last interglacial period[J]. Nature, 1996, 383:806-810.
[20] 张平中, 王先彬, 王苏民, 等. 青藏高原东部末次间冰期气候不稳定性分析[J].科学通报, 1998, 43(1):17-21. [ZHANG Ping-zhong, WANG Xian-bin, WANG Su-min, et al. Climate unstability of the east Tibetan Plateau during the Last Interglacial[J].Chinese Science Bulletin, 1998, 43(1):17-21.]
[21] Weaver A J, Hughes T M S. Rapid interglacial climate fluctuations driven by North Atlantic ocean circulation[J]. Nature, 1994, 367:447-450.
[22] Adkins J F, Boyle E A, Keigwin L, et al. Variability of the North Atlantic thermohaline circulation during the last interglacial period[J]. Nature, 1997, 390:154-156.
[23] Zagwijn W H. An analysis of Permian climate in western and central Europe[J]. Quaternary Science Reviews, 1996, 1:451-469.
[24] Rioual P, Andrieu P V, Rietti S M, et al. High-resolution record of climate stability in France during the last interglacial period[J]. Nature, 2001, 413:293-296.
[25] Stuiver M, Braziunas T F. Sun, ocean, climate and atmospheric 14CO2:an evaluation of causal and spectral relationships[J]. The Holocene, 1993, 3(4):289-305.
[26] Gallup C D, Cheng H, Taylor F W, et al. Direct determination of the timing of sea level change during Termination[J]. Science, 2002, 295:310-313.
[27] David W L, Dorothy K P, Howard J S. Climate impact of Late Quaternary equatorial Pacific Sea surface temperature variations[J]. Science, 2000, 289:1719-1724.
[28] Spotl C, Mangini A, Frank N, et al. Start of the last interglacial period at 135 ka:Evidence from a high Alpine speleothem[J]. Geological Society of American, 2002, 30(9):815-818.
[29] Henderson G M, Slowey N C. Evidence from U-Th dating against Northern Hemisphere forcing of the penultimate deglaciatiion[J]. Nature, 2000, 404:61-66.
[30] Imbrie J, Hays J D,Martinson D G,et al.The orbital theory of Pleistocene climate:Support from a revised chronology of the marine δ18O record[C]//Milankovitch and Climate.Hingham:D Riedel,1984:269-305.
[31] Slowey N C, Henderson G M, Curry V B. Direct U-Th dating of marine sediments from the two most recent interglacial periods[J]. Nature, 1996, 383:242-245.
[32] Muhs D R, Simmons K R, Steinke B. Timing and warmth of the Last Interglacial period:new U-series evidence from Hawaii and Bermuda and a new fossil compilation for North America[J]. Quat. Sci. Rev., 2002, 21:1355-1383.
[33] Bar-Matthews M, Ayalon A, Gilmour M, et al. Sea-land oxygen isotopic relationships from planktonic foraminifera and speleothems in the Eastern Mediterranean region and their implication for paleorainfall during interglacial intervals[J]. Geochim. Cosmochim. Acta, 2003, 67:3181-3192.
[34] Stirling C H, Esat T M, Lambeck K, et al. Timing and duration of the Last Interglacial:evidence for a restricted interval of widespread coral reef growth[J]. Earth Planet. Sci. Lett., 1998, 160:745-762.
计量
- 文章访问数: 1350
- HTML全文浏览量: 96
- PDF下载量: 7
下载:
