Lyle, Mitchell W (2015): Pacific Neogene carbonate accumulation rates [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.841501, Supplement to: Lyle, MW (2003): Neogene carbonate burial in the Pacific Ocean. Paleoceanography, 18(3), 1059, https://doi.org/10.1029/2002PA000777
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
I have compiled CaCO3 mass accumulation rates (MARs) for the period 0–25 Ma for 144 Deep Sea Drilling Project and Ocean Drilling Program drill sites in the Pacific in order to investigate the history of CaCO3 burial in the world's largest ocean basin. This is the first synthesis of data since the beginning of the Ocean Drilling Program. Sedimentation rates, CaCO3 contents, and bulk density were estimated for 0.5 Myr time intervals from 0 to 14 Ma and for 1 Myr time intervals from 14 to 25 Ma using mostly data from Initial Reports volumes. There is surprisingly little coherence between CaCO3 MAR time series from different Pacific regions, although regional patterns exist. A transition from high to low CaCO3 MAR from 23–20 Ma is the only event common to the entire Pacific Ocean. This event is found worldwide. The most likely cause of lowered pelagic carbonate burial is a rising sea-level trend in the early Miocene. The central and eastern equatorial Pacific is the only region with adequate drill site coverage to study carbonate compensation depth (CCD) changes in detail for the entire Neogene. The latitude-dependent decrease in CaCO3 production away from the equator is an important defining factor of the regional CCD, which shallows away from the equatorial region. Examination of latitudinal transects across the equatorial region is a useful way to separate the effects of changes in carbonate production ('productivity') from changes in bottom water chemistry ('dissolution') upon carbonate burial.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 7.021357 * Median Longitude: -160.124492 * South-bound Latitude: -68.996800 * West-bound Longitude: 110.111700 * North-bound Latitude: 56.956300 * East-bound Longitude: -81.043700
Date/Time Start: 1969-04-15T00:00:00 * Date/Time End: 1996-06-22T00:00:00
Minimum DEPTH, sediment/rock: 0.0100 m * Maximum DEPTH, sediment/rock: 1014.8100 m
Event(s):
5-32 * Latitude: 37.127200 * Longitude: -127.556300 * Date/Time: 1969-04-15T00:00:00 * Elevation: -4758.0 m * Penetration: 215 m * Recovery: 85.9 m * Location: North Pacific/PLAIN * Campaign: Leg5 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 104 m cored; 9 m drilled; 82.6 % recovery
5-33 * Latitude: 39.474700 * Longitude: -127.496800 * Date/Time: 1969-04-19T00:00:00 * Elevation: -4284.0 m * Penetration: 295 m * Recovery: 98.8 m * Location: North Pacific/HILL * Campaign: Leg5 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 101.3 m cored; 0 m drilled; 97.5 % recovery
5-34 * Latitude: 39.470200 * Longitude: -127.275700 * Date/Time: 1969-04-23T00:00:00 * Elevation: -4322.0 m * Penetration: 384 m * Recovery: 102.2 m * Location: North Pacific/PLAIN * Campaign: Leg5 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 126 m cored; 0 m drilled; 81.1 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | AGE | Age | ka BP | Geocode | ||
| 6 | Age, minimum/young | Age min | ka | Lyle, Mitchell W | ||
| 7 | Age, maximum/old | Age max | ka | Lyle, Mitchell W | ||
| 8 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 9 | Depth, top/min | Depth top | m | Lyle, Mitchell W | ||
| 10 | Depth, bottom/max | Depth bot | m | Lyle, Mitchell W | ||
| 11 | Paleolatitude | Pal-lat | Lyle, Mitchell W | at top of int hotspot ref frame | ||
| 12 | Paleolongitude | Pal-long | Lyle, Mitchell W | at top of int hotspot ref frame | ||
| 13 | Paleoelevation | Paleoelevation | m a.s.l. | Lyle, Mitchell W | at top of int | |
| 14 | Quality flag | QF | Lyle, Mitchell W | Estimated | of depth: 1) well-constrained, normal ocean crust 2) well constrained on anomalous ocean crust or continent; 3) not well constrained | |
| 15 | Sedimentation rate | SR | cm/ka | Lyle, Mitchell W | ||
| 16 | Error | Error | Lyle, Mitchell W | Estimated | Sedimentation rate, 1=<20% relative; 2=20-40%; 3=40-60%; 4=60-80%; 5=>80% | |
| 17 | Calcium carbonate | CaCO3 | % | Lyle, Mitchell W | ||
| 18 | Sample comment | Sample comment | Lyle, Mitchell W | CaCO3, # of samples in interval | ||
| 19 | Error | Error | Lyle, Mitchell W | Estimated | CaCO3, 1=<20% relative; 2=20-40%; 3=40-60%; 4=60-80%; 5=>80% | |
| 20 | Density, wet bulk | WBD | g/cm3 | Lyle, Mitchell W | ||
| 21 | Sample comment | Sample comment | Lyle, Mitchell W | WBD, # of samples in interval | ||
| 22 | Error | Error | Lyle, Mitchell W | Estimated | WBD, 1=<20% relative; 2=20-40%; 3=40-60%; 4=60-80%; 5=>80% | |
| 23 | Density, dry bulk | DBD | g/cm3 | Lyle, Mitchell W | ||
| 24 | Sample comment | Sample comment | Lyle, Mitchell W | DBD, # of samples in interval | ||
| 25 | Error | Error | Lyle, Mitchell W | Estimated | DBD, 1=<20% relative; 2=20-40%; 3=40-60%; 4=60-80%; 5=>80% | |
| 26 | Accumulation rate, calcium carbonate | Acc rate CaCO3 | g/cm2/ka | Lyle, Mitchell W | ||
| 27 | Accumulation rate, mass | MAR | g/cm2/ka | Lyle, Mitchell W | ||
| 28 | Error | Error | Lyle, Mitchell W | Estimated | Accumulation rate, relative scale | |
| 29 | Comment | Comment | Lyle, Mitchell W |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
80882 data points
Download Data
View dataset as HTML (shows only first 2000 rows)