# Marinduque Island, Philippines Coral Heavy Metals and Oxygen Isotope Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/1893 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-coral-1893.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Corals and Sclerosponges # # Dataset_DOI: 10.25921/5844-dk90 # # Science_Keywords: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/west_pacific/marinduque2004-ihat01-metals-noaa.txt # Data_Download_Description: NOAA Template File; Ihatub Reef Sample 2001 Heavy Metal Data # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/west_pacific/marinduque2004-supp.txt # Related_Online_Description: Supplemental File; Raw Density and Oxygen Isotope Data Used for Chronology # #-------------------- # Contribution_Date # Date: 2003-07-01 #-------------------- # File_Last_Modified_Date # Date: 2025-07-15 #-------------------- # Title # Study_Name: Marinduque Island, Philippines Coral Heavy Metals and Oxygen Isotope Data #-------------------- # Investigators # Investigators: David, C.P. #-------------------- # Description_Notes_and_Keywords # Description: Marinduque Island, Philippines Coral Heavy Metals and Oxygen Isotope Data. All samples are from the Island of Marinduque in the Philippines (13deg 26'N 121deg 49' E). #-------------------- # Publication # Authors: David, C.P. # Published_Date_or_Year: 2003 # Published_Title: Heavy metal concentrations in growth bands of corals: a record of mine tailings input through time (Marinduque Island, Philippines) # Journal_Name: Marine Pollution Bulletin # Volume: 46 # Edition: # Issue: 2 # Pages: 187-196 # Report_Number: # DOI: 10.1016/S0025-326X(02)00315-6 # Online_Resource: # Full_Citation: # Abstract: The impact of copper mining along the western coast of Marinduque Island was investigated. Historic input of mine tailings in the coastal region was traced through variations in heavy metal concentrations in Porites growth bands. Five samples were collected from three reefs showing different modes and extent of exposure to mine tailings. Baseline metal concentrations in Porites were established using a coral from a reef that is least exposed to contamination. The lowest mean values of Cu (0.7 μg/g), Mn (0.8 μg/g), and Zn (1.0 μg/g) were calculated from annual skeletal bands representing five years of growth. Conversely, a sample from a reef adjacent to an old tailings stockpile displayed consistently elevated metal values in its growth bands. Mean Cu, Mn, and Zn values for this coral are 3.1, 1.0 and 1.8 μg/g, respectively. Corals from the Ihatub reef showed a distinct metal concentration peak in their 1996 growth ring. These peaks coincide with a documented release of mine tailings in the Ihatub area during that year. Other metal peaks observed in coral samples correlate with years of high precipitation which may have resulted in increased sediment transport in the region. The metals are presumed to be mostly bound to the aragonite lattice of the coral skeleton, however, contribution from incorporated detrital materials to the observed metal signal (mainly of Fe) could not be easily discounted. #-------------------- # Funding_Agency # Funding_Agency_Name: Geological Society of America # Grant: student grant #-------------------- # Funding_Agency # Funding_Agency_Name: Stanford University # Grant: McGee grant #-------------------- # Funding_Agency # Funding_Agency_Name: Department of Science and Technology of the Philippine Government # Grant: #-------------------- # Site_Information # Site_Name: Marinduque Island # Location: Philippines # Northernmost_Latitude: 13.43 # Southernmost_Latitude: 13.43 # Easternmost_Longitude: 121.82 # Westernmost_Longitude: 121.82 # Elevation_m: #-------------------- # Data_Collection # Collection_Name: david2003 ihat01 metals # First_Year: 1996 # Last_Year: 2001 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: trace metals # Notes: #-------------------- # Chronology_Information # Chronology: # #-------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## samp_id sample identification,,,,,corals and sclerosponges,,,C, ## depth_mm depth,,,millimeter,,corals and sclerosponges,,,N, ## cu copper,Porites lobata,,microgram per gram,,corals and sclerosponges,,,N, ## cu_stdev copper,Porites lobata,one standard deviation,microgram per gram,,corals and sclerosponges,,,N, ## fe iron,Porites lobata,,microgram per gram,,corals and sclerosponges,,,N, ## fe_stdev iron,Porites lobata,one standard deviation,microgram per gram,,corals and sclerosponges,,,N, ## mn manganese,Porites lobata,,microgram per gram,,corals and sclerosponges,,,N, ## mn_stdev manganese,Porites lobata,one standard deviation,microgram per gram,,corals and sclerosponges,,,N, ## zn zinc,Porites lobata,,microgram per gram,,corals and sclerosponges,,,N, ## zn_stdev zinc,Porites lobata,one standard deviation,microgram per gram,,corals and sclerosponges,,,N, #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: samp_id depth_mm cu cu_stdev fe fe_stdev mn mn_stdev zn zn_stdev 040901-1 1 53.31297403 38.22739781 2.593462648 10.19061682 040901-2 3.5 3.543319243 0.212899663 12.69864982 2.435382818 1.333179673 0.047939208 0.86571803 0.009074673 040901-3 6 3.122154537 40.3148445 1.879448541 0.450144277 040901-4_1 8.5 2.39289708 0.085513452 13.00144501 0.584028502 1.629005619 0.038329854 0.271759842 0.028982956 040901-5 11 2.334260397 42.82776017 3.409223207 0.417178708 040901-6_1 13 5.206864936 0.113581354 260.3416578 9.747859567 14.28841201 0.384654933 0.669000679 0.09578915 040901-7 15.5 5.199742268 273.0966495 15.91043814 0.587628866 040901-8_1 17 1.876171675 0.17997745 57.15628727 2.491022439 4.388278116 0.001485663 0.532671467 0.093038921 040901-10_1 20.5 4.108063182 1.032269458 8.795026445 1.024793375 2.190041482 0.017165725 0.180874421 0.032223292 040901-11_1 22.5 1.223896259 0.118087973 5.449833194 0.086823995 1.768327994 0.031934818 0.181640702 0.038464423 040901-12 25 1.341988787 9.321333727 15.91043814 0.417822366 040901-13_1 27.5 2.259924097 0.885610021 19.14662291 1.185086816 2.165722778 0.094589202 0.199727854 0.10724373 040901-14 30 4.242016807 118.7361345 3.890756303 0.642184874 040901-15_1 32.2 2.499180278 0.017676336 52.47049028 0.004949379 2.07886419 0.000577896 1.001376034 0.0920139 040901-16 34.4 3.724445724 71.52605816 3.662539591 0.404549381 040901-17_1 36.6 4.408456752 0.103098456 72.50725808 3.088923674 4.775771416 0.090813378 0.352750783 0.133369294 040901-18_1 38.8 3.243602868 0.037759139 48.36835723 3.760675026 2.936514072 0.205062989 0.358474126 0.105683581 040901-19 41 6.422444603 117.8663331 5.446747677 0.369141223 040901-20_1 43.2 5.182777173 0.350634316 82.99239275 0.772749888 4.14020474 0.279490454 0.358821456 0.050107115 040901-21_1 45.4 3.053059379 0.005356199 43.6762536 0.575546883 2.953480174 0.120724773 0.395742045 0.072455835 040901-22 47.6 4.411158959 66.83205392 4.428009736 0.38 040901-23_1 49.8 2.754359397 0.200199557 32.66230617 0.555989044 3.266832842 0.024524449 0.37340334 0.029329063 040901-24_1 52 9.596635211 0.676569189 125.5630873 2.435615857 6.350804601 0.055119621 0.870824276 0.188202253 040901-25_1 54.2 8.889088785 0.196845548 167.920322 3.001392137 7.108681617 0.181239379 0.530906214 0.068806498 040901-26_1 56.4 7.20328665 0.054581987 141.8727617 5.532865294 6.157361199 0.110729075 0.459188776 0.00685717