Citation:

PANGAEA.993811 (DOI registration in progress)

Name: Pollen raw counts of lake sediment core TAR2-18-1 from Tarn 2, East Falkland
Published: 2026-04-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: alkanes; Biomarker; Lake sediment core; Long-chain n-alkanes; Pollen; South Altantic; south westerly wind; Vegetation change; Vegetation composition

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Published: 2026-04-27

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Abstract:

Pollen data from Tarn 2, Mt. Usborne, East Falkland extracted from tar2-18-1 with piston corer in Spring 2018. Data is plotted by depth of the piston core and age. Pollen assemblage is reported as raw counts, percentage of the upland sum (%), pollen concentration (grains/cm3), and pollen accumulation rate (grains/cm2/yr).

Keyword(s):

alkanes; Biomarker; Lake sediment core; Long-chain n-alkanes; Pollen; South Altantic; south westerly wind; Vegetation change; Vegetation composition

Related to:

Spoth-Ascencao, Meghan; Hall, Brenda L; Gill, Jacquelyn; et al. (accepted): A 13,000-year record of the Southern Hemisphere Westerlies inferred from pollen and plant wax isotopes from the South Atlantic. Paleoceanography and Paleoclimatology

Spoth-Ascencao, Meghan; Hall, Brenda L; Lowell, Thomas V; Diefendorf, Aaron F; Corcoran, Megan C; Brickle, Paul (2023): Tracking the southern hemisphere westerlies during and since the last glacial maximum with multiproxy lake records from the Falkland Islands (52 °S). Quaternary Science Reviews, 311, 108135, https://doi.org/10.1016/j.quascirev.2023.108135

Coverage:

Latitude: -51.696367 * Longitude: -58.826867

Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 1.50 m

Event(s):

TAR2-18-1 * Latitude: -51.696367 * Longitude: -58.826867 * Elevation: 600.0 m * Location: Falkland Islands * Method/Device: Piston corer (PC) * Comment: Spring 2018, Tarn 2

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Spoth-Ascencao, Meghan		Geocode
2	AGE	Age	ka BP	Spoth-Ascencao, Meghan	Age, calibrated	Geocode – cal BP
3	Sedimentation rate per year	SR	cm/a	Spoth-Ascencao, Meghan		Accumulation rate
4	Marker	Marker		Spoth-Ascencao, Meghan
5	Asteraceae	Astae	#	Spoth-Ascencao, Meghan	Counting, palynology
6	Rosaceae	Rosae	#	Spoth-Ascencao, Meghan	Counting, palynology
7	Bolax	Bolax	#	Spoth-Ascencao, Meghan	Counting, palynology
8	Poaceae	Poac	#	Spoth-Ascencao, Meghan	Counting, palynology
9	Podocarpus	Pod	#	Spoth-Ascencao, Meghan	Counting, palynology
10	Ephedra	Eph	#	Spoth-Ascencao, Meghan	Counting, palynology
11	Nothofagus	Nothofagus	#	Spoth-Ascencao, Meghan	Counting, palynology
12	Cyperaceae	Cypae	#	Spoth-Ascencao, Meghan	Counting, palynology
13	Lycopodium	Lyc	#	Spoth-Ascencao, Meghan	Counting, palynology
14	Spores, trilete undifferentiated	tril.ud	#	Spoth-Ascencao, Meghan	Counting, palynology
15	Spores, monolete	Spores mono	#	Spoth-Ascencao, Meghan	Counting, palynology
16	Caryophyllaceae	Cphae	#	Spoth-Ascencao, Meghan	Counting, palynology
17	Ericaceae	Eriae	#	Spoth-Ascencao, Meghan	Counting, palynology
18	Astelia pumila	A. pumila	#	Spoth-Ascencao, Meghan	Counting, palynology
19	Drapetes	Drapetes	#	Spoth-Ascencao, Meghan	Counting, palynology
20	Apiaceae	Apiae	#	Spoth-Ascencao, Meghan	Counting, palynology
21	Gunnera	Gunnera	#	Spoth-Ascencao, Meghan	Counting, palynology
22	Pollen, upland	Pollen upland	#	Spoth-Ascencao, Meghan	Counting, palynology
23	Pollen, cushion	Pollen cushion	#	Spoth-Ascencao, Meghan	Counting, palynology
24	Pollen, long distance	Pollen long dis	#	Spoth-Ascencao, Meghan	Counting, palynology	travel grains
25	Moss and ferns	Moss + ferns	#	Spoth-Ascencao, Meghan	Counting, palynology
26	Pollen, herbs	Pollen herbs	#	Spoth-Ascencao, Meghan	Counting, palynology

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

767 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 SR [cm/a]	4 Marker	5 Astae [#]	6 Rosae [#]	7 Bolax [#]	8 Poac [#]	9 Pod [#]	10 Eph [#]	11 Nothofagus [#]	12 Cypae [#]	13 Lyc [#]	14 tril.ud [#]	15 Spores mono [#]	16 Cphae [#]	17 Eriae [#]	18 A. pumila [#]	19 Drapetes [#]	20 Apiae [#]	21 Gunnera [#]	22 Pollen upland [#]	23 Pollen cushion [#]	24 Pollen long dis [#]	25 Moss + ferns [#]	26 Pollen herbs [#]
0.03	2.315	0.02	241	11	0	13	192	6	2	27	0	10	0	19		9	18	7	12	3	300	38	35	29	26
0.08	2.593	0.02	147	9	0	15	181	7	5	32	5	16	5	21	1	6	18	10	14	2	300	43	44	42	26
0.12	2.817	0.02	173	14	0	13	166	4	1	57	2	14	0	21	0	9	15	8	8	5	300	36	62	35	27
0.16	3.042	0.02	163	11	0	16	175	3	4	40	8	28	11	15	8	9	11	15	6	2	300	42	47	54	27
0.24	3.493	0.02	140	12	0	6	184	1	6	34	4	17	3	12	5	15	7	21	3	6	300	34	41	32	26
0.32	3.900	0.02	99	13	1	14	155	7	6	24	8	10	5	30	4	12	22	22	11	9	300	58	37	45	38
0.40	4.278	0.02	211	8	0	10	178	5	4	35	7	22	6	28	2	22	8	13	9	6	300	31	44	56	25
0.48	4.672	0.02	147	13	0	14	158	4	2	37	2	16	3	20	7	11	11	17	10	16	300	42	43	39	46
0.56	5.076	0.02	91	10	0	14	181	2	3	28	5	8	9	21	1	10	11	13	14	13	300	38	33	38	38
0.64	5.455	0.02	132	5	4	9	192	5	7	32	5	15	11	37	0	6	17	12	7	4	300	38	44	63	20
0.70	5.769	0.02	73	13	0	9	191	0	2	31	0	12	0	19	2	9	11	12	8	12	300	32	33	31	35
0.75	5.988	0.02	187	13	0	8	191	4	0	25	0	16	0	27	3	15	7	9	6	19	300	24	29	43	41
0.80	6.221	0.02	126	12	0	21	163	5	2	30	7	13	1	23	4	14	13	25	9	2	300	59	37	37	27
0.88	6.572	0.02	139	11	1	14	182	2	4	23	6	13	4	23	0	10	15	14	17	7	300	43	29	40	36
0.93	6.847	0.02	149	7	0	11	198	2	2	30	0	11	0	21	2	11	6	13	5	13	300	30	34	32	27
0.96	7.024	0.02	195	12	0	14	167	4	5	37	6	20	6	15	4	8	6	22	7	14	300	42	46	41	37
1.00	7.212	0.02	113	8	0	14	208	1	3	33	0	11	0	22	0	9	4	9	4	7	300	27	37	33	19
1.05	7.589	0.01	210	13	0	8	207	0	2	29	0	4	0	9	1	12	3	12	7	6	300	23	31	13	27
1.10	8.449	0.01	167	8	0	7	212	3	2	30	0	6	0	12	0	6	2	24	3	3	300	33	35	18	14
1.12	8.830	0.01	173	17	0	7	173	0	5	41	9	10	2	18	3	8	21	10	11	4	300	38	46	30	35
1.15	9.402	0.01	131	11	0	11	193	0	2	35	0	7	0	13	0	18	9	13	6	2	300	33	37	20	19
1.18	9.937	0.01	134	13	1	12	176	2	5	27	1	11	10	15	0	23	13	13	9	6	300	38	34	36	29
1.20	10.294	0.01	133	5	0	9	162	6	6	30	8	22	8	22	4	11	21	22	11	13	300	52	42	52	33
1.22	10.517	0.01	95	5	2	12	188	2	4	30	6	17	11	33	0	17	7	22	2	9	300	41	36	61	18
1.28	11.176	0.01	61	10	4	11	180	8	4	22	4	20	16	31	1	13	9	19	9	10	300	39	34	67	34
1.30	11.392	0.01	72	9	0	16	174	2	5	33	0	20	1	35	0	12	16	24	5	4	300	56	40	56	18
1.32	11.608	0.01	52	8	0	7	189	2	9	27	0	13	2	42	0	14	14	16	7	7	300	37	38	57	22
1.34	11.824	0.01	84	10	4	20	171	2	6	29	6	22	6	51	2	14	10	18	2	12	300	48	37	79	30
1.38	12.107	0.02	150	12	0	24	196	0	3	11	5	7	7	54	2	12	5	11	2	22	300	40	14	68	38
1.40	12.223	0.02	217	6	0	21	211	3	4	13	2	9	5	22	2	11	7	7	5	10	300	35	20	36	23
1.44	12.438	0.02	216	3	0	9	142	6	6	12	5	9	1	4	0	3	11	7	0	1	200	27	24	14	4
1.50	12.737	0.02	206	3	0	12	143	1	6	11	2	2	3	5	0	4	13	6	0	1	200	31	18	10	4