Citation:

s10933-004-5331-z

Name: Age determination of sediment core PTA02-04 from Laguna Potrok Aike, Patagonia (Table 1)
Published: 2005
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The volcanogenic lake Laguna Potrok Aike, Santa Cruz, Argentina, reveals an unprecedented continuous high resolution climatic record for the steppe regions of southern Patagonia. With the applied multi-proxy approach rapid climatic changes before the turn of the first millennium were detected followed by medieval droughts which are intersected by moist and/or cold periods of varying durations and intensities. The 'total inorganic carbon' content was identified as a sensitive lake level indicator. This proxy suggests that during the late Middle Ages (ca. AD 1230-1410) the lake level was rather low representing a signal of the 'Medieval Climate Anomaly' in southeastern Patagonia. At the beginning of the 'Little Ice Age' the lake level rose considerably staying on a high level during the whole period. Subsequently, the lake level lowered again in the course of the 20th century.

Coverage:

Latitude: -51.956670 * Longitude: -70.377220

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.975 m

Event(s):

PTA02-04 * Latitude: -51.956670 * Longitude: -70.377220 * Elevation: 113.0 m * Lake water depth: 100 m * Location: Laguna Potrok Aike, Patagonia * Method/Device: Gravity corer (GC)

Comment:

Second dataset of core PTA02-04 included in doi:10.1594/PANGAEA.672039. Age for flooded shore sample = percent of modern carbon (pMC). Project: South Argentinean Lake Sediment Archives and modeling (SALSA) http://www.salsa.uni-bremen.de; funded by German Ministry of Education and Research (BMBF) within the framework of the German Climate Research Program DEKLIM, http://www.deklim.de

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Depth, top/min	Depth top	m	Haberzettl, Torsten
3	Depth, bottom/max	Depth bot	m	Haberzettl, Torsten
4	Sample comment	Sample comment		Haberzettl, Torsten
5	Sample code/label	Sample label		Haberzettl, Torsten
6	Age, dated	Age dated	ka	Haberzettl, Torsten	Age, 14C AMS
7	Age, dated standard deviation	Age dated std dev	±	Haberzettl, Torsten	Age, 14C AMS
8	Age, dated material	Dated material		Haberzettl, Torsten
9	Age	Age	a AD/CE	Haberzettl, Torsten	Age, 14C calibrated, CALIB 4.4 (Stuiver et al., 2003)	Southern hemisphere calibration (McCormac et al., 2002), negative values are B.C.
10	Age, dated, error to younger	Age e -	ka -	Haberzettl, Torsten	Age, 14C calibrated, CALIB 4.4 (Stuiver et al., 2003)	Southern hemisphere calibration (McCormac et al., 2002), error to present
11	Age, dated, error to older	Age e +	ka +	Haberzettl, Torsten	Age, 14C calibrated, CALIB 4.4 (Stuiver et al., 2003)	Southern hemisphere calibration (McCormac et al., 2002), error to past

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

112 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Depth sed [m]	2 Depth top [m]	3 Depth bot [m]	4 Sample comment	5 Sample label	6 Age dated [ka]	7 Age dated std dev [±]	8 Dated material	9 Age [a AD/CE]	10 Age e - [ka -]	11 Age e + [ka +]
0.000			fluvio-lacustrine sediments above present lake level	Poz-3590	0.1600	0.0500	bone of a guanaco	1820	0.135	0.150
0.000			fluvio-lacustrine sediments above present lake level	Poz-3589	0.0650	0.0350	bone of a horse	1870	0.095	0.165
0.000			flooded shore	Poz-3573	0.1152	0.0004	modern Potamogeton (water plant)	1991
0.195	0.190	0.200		Poz-1688	2.1900	0.0400	bulk sediment	-190	0.140	0.155
0.295	0.290	0.300		Poz-1689	3.7600	0.0500	bulk sediment	-2110	0.155	0.175
0.435	0.430	0.440		Poz-834	0.4400	0.0300	one larger (1cm) part of an aquatic plant	1500	0.125	0.055
0.500	0.495	0.505		Poz-897	0.6550	0.0250	bulk sediment	1350	0.055	0.045
0.570	0.570	0.570		Poz-3570	0.7350	0.0250	calcite of bulk sample	1310	0.075	0.040
0.700	0.690	0.710		Poz-900	1.3300	0.0350	few parts of aquatic plants, mm-scale	740	0.115	0.080
0.735	0.730	0.740		Poz-899	1.5800	0.0300	layer with many parts of aquatic plants	520	0.085	0.085
0.815	0.810	0.820		Poz-1686	2.4400	0.0400	bulk sediment	-540	0.145	0.225
0.925	0.920	0.930		Poz-896	1.4700	0.0400	layer with many parts of aquatic plants	610	0.050	0.050
0.975	0.970	0.980		Poz-902	2.1400	0.0350	one small (mm) part of an aquatic plant	-120	0.120	0.225