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Sibert, Elizabeth C; Hull, Pincelli M; Norris, Richard D (2014): Ichthyolith counts and MAR at Gubbio outcrop [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.834230, In supplement to: Sibert, EC et al. (2014): Resilience of Pacific pelagic fish across the Cretaceous/Palaeogene mass extinction. Nature Geoscience, 7(9), 667-670, https://doi.org/10.1038/ngeo2227

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Further details:
Lowrie, William; Alvarez, Walter (1977): Upper Cretaceous–Paleocene magnetic stratigraphy at Gubbio, Italy III. Upper Cretaceous magnetic stratigraphy. Geological Society of America Bulletin, 88(3), 374-377, https://doi.org/10.1130/0016-7606(1977)88%3C374:UCMSAG%3E2.0.CO;2
Monechi, Simonetta; Thierstein, Hans R (1985): Late Cretaceous-Eocene nannofossil and magnetostratigraphic correlations near Gubbio, Italy. Marine Micropaleontology, 9(5), 419-440, https://doi.org/10.1016/0377-8398(85)90009-X
Mukhopadhyay, Sujoy; Montanari, Alessandro; Farley, Kenneth A (2001): A Short Duration of the Cretaceous-Tertiary Boundary Event: Evidence from Extraterrestrial Helium-3. Science, 291(5510), 1952-1955, https://doi.org/10.1126/science.291.5510.1952
Premoli Silva, Isabella (1977): Upper Cretaceous–Paleocene magnetic stratigraphy at Gubbio, Italy II. Biostratigraphy. Geological Society of America Bulletin, 88(3), 371-374, https://doi.org/10.1130/0016-7606(1977)88%3C371:UCMSAG%3E2.0.CO;2
Sibert, Elizabeth C; Hull, Pincelli M; Norris, Richard D (2014): Age model of Gubbio outcrop. PANGAEA, https://doi.org/10.1594/PANGAEA.834214
Coverage:
Latitude: 43.360000 * Longitude: 12.580000
Minimum SECTION, height: 343.83 m * Maximum SECTION, height: 355.43 m
Event(s):
Gubbio (GUB) * Latitude: 43.360000 * Longitude: 12.580000 * Location: Italy
Comment:
DEPTH, sediment/rock [m] is given in mbsf. All Ichthyolith counts were collected as part of this study. The primary age model was developed using biostratigraphic and magnetostratigraphic markers (see Gubbio Age model for details) and age datums from GTS 2012. A second age model (a helium age model) was used to test the sensitivity of our conclusions to age models affects. Helium sedimentation rates were directly taken from Figure 2 of Mukhopadhyay et al. (2001). The Gubbio K/Pg boundary is at 347.63 m (GTS 2012 boundary age = 66.04 Ma). MAR were calculated using a constant dry bulk density of 2.7g/cm^3 in both cases.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Sample code/labelSample labelSibert, Elizabeth C
2 Depth, relativeDepth relmSibert, Elizabeth Crelative to K/Pg (m)
3 SECTION, heightSectionmGeocode
4 AGEAgeka BPGeocode
5 IchthyolithsIchthyol#Sibert, Elizabeth CCounting >38 µm fraction
6 Dry massDry mgSibert, Elizabeth C
7 IchthyolithsIchthyol#/gSibert, Elizabeth CCounting >38 µm fraction
8 Accumulation rate, massMARg/cm2/kaSibert, Elizabeth C
9 Accumulation rate, ichthyolithsAcc rate ichthyol#/cm2/kaSibert, Elizabeth CCounting >38 µm fraction
10 Age model, optionalAge model optkaSibert, Elizabeth Crough est. He MARs
11 Accumulation rate, massMARg/cm2/kaSibert, Elizabeth Crough est. He MARs
12 Accumulation rate, ichthyolithsAcc rate ichthyol#/cm2/kaSibert, Elizabeth CCounting >38 µm fractionrough est. He MARs
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
341 data points

Data

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

1 
Sample label		2 
Depth rel [m]
(relative to K/Pg (m))		3 
Section [m]		4 
Age [ka BP]		5 
Ichthyol [#]		6 
Dry m [g]		7 
Ichthyol [#/g]		8 
MAR [g/cm2/ka]		9 
Acc rate ichthyol [#/cm2/ka]		10 
Age model opt [ka]
(rough est. He MARs)		11 
MAR [g/cm2/ka]
(rough est. He MARs)		12 
Acc rate ichthyol [#/cm2/ka]
(rough est. He MARs)
GKP007-3.8343.836633312594.3141.3253.4704.598
GKP009-3.4344.236630210998.0191.1123.4703.858
GKP010-3.2344.436628712296.0951.2703.4704.405
GKP011-3.0344.6366271137102.2131.3403.4704.650
GKP014-2.4345.236622410898.9401.0923.4703.787
GKP015-2.2345.436620913097.1671.3383.4704.642663372.2863.059
GKP016-2.0345.6366193147107.1121.3723.4704.762663132.2033.023
GKP022-0.8346.8366100194108.4431.7893.4706.207661542.4264.340
GKP023-0.6347.0366084156102.2221.5263.4705.295661291.9793.020
GKP025-0.4347.2366069136101.0721.3463.4704.668660991.8722.519
GKP027-0.2347.436605310983.4881.3063.4704.530660701.6682.177
GKP028-0.1347.536604510061.3051.6313.4705.659660541.8943.090
GKP0290.0347.63660191921.4280.8870.3860.342660401.8411.632
GKP0300.1347.736594911393.9531.2030.3860.464660251.8102.177
GKP0310.2347.83658793023.0681.3000.3860.502660091.6592.157
GKP0330.4348.036574812697.6641.2900.6990.902659711.1361.466
GKP0340.5348.136571091102.3800.8890.6990.622659440.8940.794
GKP0350.6348.23656716954.1751.2740.6990.891659100.7650.974
GKP0360.7348.336563386105.0250.8190.6990.573658740.6810.558
GKP0370.8348.43655947467.2631.1000.6990.769658340.7260.799
GKP0380.9348.53655555951.5301.1450.6990.801658000.8470.970
GKP0391.0348.636551719898.1682.0170.6991.410657680.8921.800
GKP0401.1348.736547826496.8942.7250.6991.905657400.9372.554
GKP0421.3348.93654019564.4451.4740.6530.963656851.0431.537
GKP0431.4349.0365362158112.6341.4030.6530.917656611.0951.537
GKP0441.5349.136532411868.7331.7170.6531.122656371.1631.997
GKP0481.9349.536516922099.2282.2170.6531.449655521.4123.130
GKP0512.4350.036497617788.2122.0070.6531.311654631.5083.027
GKP0532.8350.436478127482.0543.3390.7512.506653851.2884.300
GKP0553.2350.836463718292.2591.9730.7511.481652971.1812.329
GKP0583.8351.436442219799.5471.9790.7511.485
GKP0604.2351.836427826477.0643.4260.7512.571
GKP0685.8353.436370226279.6963.2870.7512.468
GKP0706.2353.836355846898.8284.7360.7513.554
GKP0716.4354.03634865040.9051.2220.7510.917
GKP0736.8354.43633426729.5192.2700.7511.704
GKP0777.6355.236305518029.2146.1610.7514.625
GKP0787.8355.436298337394.1833.9600.7512.973