U.S. Geological Survey Certificate of Analysis

Manganese Nodule, NOD-P-1

NOD-P-1 is a reference material which can be used to establish analytical accuracy in the analysis of manganese nodules or other geologic samples with elevated manganese concentrations. Material used in the preparation of the standard was collected from the Pacific ocean (14°50' N, 124°28' W) at a depth of 4,300 meters.

Recommended concentrations for elements and oxides are reported when results from USGS interlaboratory studies (Flanagan and Gottfried, 1980) using independent methods of analysis are in statistical agreement. Supplemental information derived from international data compilations (Abbey, 1983, Govindaraju, 1994) is also provided.

Information concentrations are given when results are based on analyses obtained using a single technique or when data from different procedures are not in statistical agreement.

Recommended Values | Information Values | Certificate Information | Bibliography | Glossary | Notes | Order and Pricing Information

Oxide Wt % ± Oxide Wt % ±
SiO2 13.9 0.034 MnO 37.6 0.10
Al2O3 4.8 0.092 Na2O 2.2 0.006
Fe2O3 T 8.3 0.044 K2O 1.2 0.014
CaO 3.1 0.016 TiO2 0.5 0.003
MgO 3.3 0.014 P2O5 0.46 0.005
Element µg/g ± Element µg/g ±
Ba 3350 28 Pb 560 6
Co 2240 11 Sr 680 3
Cu 11500 49 V 570 10
Mo 760 4 Zn 1600 6
Ni 13400 64

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Information Values

Element µg/g Element µg/g
Ce 290 La 104
Dy 27 Lu 1.8
Er 12 Nd 120
Eu 7.5 Sm 30
Gd 28 Yb 13

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Certificate Information

Denver, Colorado
revised March 1995

David B. Smith
Central Region Mineral Resources Team (formerly Branch of Geochemistry)

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Abbey, S., 1983, Studies in "Standard Samples" of Silicate Rocks and Minerals 1969-1982: Canadian Geological Survey Paper 83-15, p. 114.

Flanagan, F.J., and Gottfried, D., 1980, USGS Rock Standards, III: Manganese-Nodule Reference Samples USGS-NOD-A-1 and USGS-NOD-P-1: U.S. Geological Survey Professional Paper 1155, 39 p.

Govindaraju, K., 1994, 1994 Compilation of Working Values and Descriptions for 383 Geostandards: Geostandards Newsletter, 18:1-158.

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Symbol Definition
Fe2O3T Total iron expressed as Fe2O3
Ctot Total carbon concentration
Stot Total sulfur concentration
Wt % Percent of total element concentration
µg/g Total element concentration expressed as micrograms of element per gram of solid sample
± One standard deviation

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Drying instructions
Prior to analysis samples of NOD-P-1 should be dried at 110°C for 24 hours. Samples should be stored in a desiccator if not used immediately. Reports indicate that NOD-P-1 can absorb up to 10% by weight of moisture when exposed overnight to air.

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Order and Pricing Information

Placing an Order

USGS reference materials may be obtained directly from Dr. Stephen A. Wilson. The price for each reference material is listed in U.S. dollars and are subject to change. For domestic orders, this cost includes all shipping and handling charges using normal mail delivery by the U.S. Postal Service. For foreign orders, delivery charges will be added to the final bill. Urgent requests for reference materials should be initiated by Fax or e-mail. If required, expedited delivery is available with any additional shipping charges added to the final bill.

To order a USGS Reference Material, please contact Dr. Stephen Wilson or use the downloadable form: Order Form (Word) (22 KB) or Order Form (PDF) (238 KB).

Dr. Stephen A. Wilson
U.S. Geological Survey
Box 25046, MS 964D
Denver, CO 80225
Tel: 303-236-2454
FAX: 303-236-3200 or 303-236-1425
Email: (swilson@usgs.gov)

Payment Options

Domestic customers: Payment options include purchase order, check, money order, or credit card (Visa, Mastercard, American Express).

International customers: Payment on foreign orders can only be made using the following:

  • Banker's draft against an international bank
  • International money order
  • Credit card (Visa, Mastercard, American Express)

Payments for domestic or international orders using a credit card receive a 10% discount on the per bottle price.

User Agreements

Beginning in 2006, users of USGS geochemical reference materials must complete a user agreement form prior to the order being processed. This agreement is required by the USGS Technology Transfer Office for complying with the United States Economy Act, 31 USC 1535A.

Please download the agreement form and follow the instructions on the form when placing your order.

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