Site has a full slide image. 
Site has an image. 
No images for this site.
Farallon de Pajaros: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Maug Islands: Basalt / Picro-Basalt, Composite type, Stratovolcano.
Asuncion: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Anatahan: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Agrigan: Basalt / Picro-Basalt, Composite type, Stratovolcano.
Sarigan: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Pagan: Basalt / Picro-Basalt, Composite type, Stratovolcano(es).
Alamagan: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Guguan: Andesite / Basaltic Andesite, Composite type, Stratovolcano.
Site has a full slide image. Site has an image. No images for this site.
Note that to see the 'Geology' layer (layer options in top right corner) you may have to zoom out.
Many fabrics have a range of abundances. The range maximum (top) and minimum (bottom) are shown.
** Has full slide image available.
| None (0) | Minor (1) | Few (2) | Common (3) | Frequent (4) | Major (5) | Very Dominant (6) |
| 0% | 0-5% | 5-15% | 15-30 % | 30-50% | 50-70% | 70-100% |
| Name | Cal. | Quartz | Feldspar | Pyroxene | Amphibole | Opaques | Olivine | Biotite | Muscovite | Epidote | Garnet/ Spinel | Ig./Met. Rocks | Sed. Rocks | Grog | Lithics/ Region |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tpr1 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| Saipan hybrid sand | 6 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | Marianas |
| tpr2 ** | 0 | 0 | 3 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, microlitic, felsitic |
| Saipan volcanic | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | Marianas |
| tpr3 ** | 6 | 3 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| Saipan hybrid | 6 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | Marianas |
| tpr10 | 0 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, felsitic |
| Saipan dacitic | 0 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | Marianas |
| tpr11 ** | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| Saipan dacitic-vitric | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | Marianas |
| tpr13 ** | 0 | 0 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, vitric, felsitic |
| Saipan feldspar andesitic | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | Marianas |
| tpr15 ** | 0 | 0 | 4 | 2 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, microlitic, felsitic |
| Saipan andesitic | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | Marianas |
| tpr5 ** | 0 | 4 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| Saipan dacitic | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | Marianas |
| tpr6 ** | 0 | 1 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, felsitic, vitric |
| Marianas andesitic | 0 | 0 | 4 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | Marianas |
| tpr21 ** | 0 | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, microlitic |
| Guam lithic hi andesitic | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | Marianas |
| tpr22 | 1 | 3 | 4 | 2 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | vitric, felsitic |
| Saipan quartzose | 0 | 3 | 3 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | Marianas |
| tpr23 | 6 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | na |
| Mariana calcareous | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Marianas |
| tpr25 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| Guam vitric | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | Marianas |
| tpr7 | 6 | 3 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| Saipan hybrid quartz | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | Marianas |
| tpr4 ** | 3 | 5 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | limeclast, felsitic, microlitic |
| Saipan quartz-rich | 2 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | Marianas |
| tpr8 | 5 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | microlitic, felsitic |
| Saipan hybrid quartzose | 4 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | Marianas |
| tpr12 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| Saipan vitric | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | Marianas |
| Slide | Fabric | Possible Origin | Cal. | Quartz | Feldspar | Pyroxene | Amphibole | Opaques | Olivine | Biotite | Muscovite | Epidote | Garnet/ Spinel | Ig./Met. Rocks | Sed. Rocks | Grog | Lithics |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WD_1_1 | tpr1 (Saipan hybrid sand) | Saipan | 6 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_1_12 | tpr1 (Saipan hybrid sand) | Saipan | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_1_13 | tpr1 (Saipan hybrid sand) | Saipan | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_1_26 | tpr1 (Saipan hybrid sand) | Saipan | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_1_18 | tpr2 (Saipan volcanic) | Saipan | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, microlitic, felsitic |
| WD_1_16 | tpr2 (Saipan volcanic) | Saipan | 0 | 0 | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, microlitic, felsitic |
| WD_1_20 | tpr2 (Saipan volcanic) | Saipan | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, microlitic, felsitic |
| WD_1_25 | tpr3 (Saipan hybrid) | Saipan | 6 | 3 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_1_23 | tpr3 (Saipan hybrid) | Saipan | 6 | 3 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_2_14 | tpr10 (Saipan dacitic) | Saipan | 0 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | vitric, felsitic |
| WD_2_13 | tpr11 (Saipan dacitic-vitric) | Saipan | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| WD_8_7 | tpr13 (Saipan feldspar andesitic) | Saipan | 0 | 0 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, vitric, felsitic |
| WD_4_24 | tpr15 (Saipan andesitic) | Saipan | 0 | 0 | 4 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, microlitic, felsitic |
| WD_4_21 | tpr15 (Saipan andesitic) | Saipan | 0 | 0 | 3 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, microlitic, felsitic |
| WD_2_16 | tpr5 (Saipan dacitic) | Saipan | 0 | 4 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | vitric |
| WD_4_5 | tpr15 (Saipan andesitic) | Saipan | 0 | 0 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, microlitic |
| WD_2_6 | tpr11 (Saipan dacitic-vitric) | Saipan | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| WD_4_8 | tpr15 (Saipan andesitic) | Saipan | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, microlitic |
| WD_5_4 | tpr6 (Marianas andesitic) | Marianas | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | microlitic, felsitic, vitric |
| WD_8_1 | tpr21 (Guam lithic hi andesitic) | Guam | 0 | 0 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| WD_6_19 | tpr22 (Saipan quartzose) | Saipan | 1 | 3 | 3 | 2 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | vitric, felsitic |
| WD_6_20 | tpr23 (Mariana calcareous) | Mariana | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | na |
| WD_5_3 | tpr6 (Marianas andesitic) | Marianas | 0 | 0 | 4 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | vitric, microlitic, felsitic |
| WD_8_3 | tpr25 (Guam vitric) | Guam | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| WD_2_22 | tpr5 (Saipan dacitic) | Saipan | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| WD_5_1 | tpr6 (Marianas andesitic) | Marianas | 0 | 0 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | microlitic, felsitic, vitric |
| WD_6_16 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_6_2 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_6_7 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_2_4 | tpr4 (Saipan quartz-rich) | Saipan | 2 | 5 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | limeclast, felsitic, microlitic |
| WD_2_1 | tpr5 (Saipan dacitic) | Saipan | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric |
| WD_2_3 | tpr5 (Saipan dacitic) | Saipan | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, felsitic |
| WD_4_1 | tpr6 (Marianas andesitic) | Saipan | 0 | 1 | 5 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, felsitic, vitric |
| WD_4_4 | tpr13 (Saipan feldspar andesitic) | Saipan | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, vitric, felsitic |
| WD_6_15 | tpr4 (Saipan quartz-rich) | Saipan | 3 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | limeclast |
| WD_8_23 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 3 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_8_25 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 3 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_6_14 | tpr7 (Saipan hybrid quartz) | Saipan | 6 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_4_18 | tpr15 (Saipan andesitic) | Saipan | 0 | 0 | 4 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | vitric, microlitic |
| WD_6_12 | tpr8 (Saipan hybrid quartzose) | Saipan | 4 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | felsitic |
| WD_2_12 | tpr11 (Saipan dacitic-vitric) | Saipan | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| WD_4_16 | tpr12 (Saipan vitric) | Saipan | 0 | 0 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| WD_4_17 | tpr12 (Saipan vitric) | Saipan | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | vitric, felsitic |
| WD_4_14 | tpr13 (Saipan feldspar andesitic) | Saipan | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, vitric, felsitic |
| WD_4_15 | tpr13 (Saipan feldspar andesitic) | Saipan | 0 | 0 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | microlitic, vitric, felsitic |
| WD_6_9 | tpr8 (Saipan hybrid quartzose) | Saipan | 5 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | microlitic, felsitic |
Type A CQT. Mixed dacitic (quartz-bearing)-calcareous (>90%) hybrid temper sand, thick red ware.
Classified differently in 2 reports. Type A or B, andesitic aggregate sand temper likely from Saipan, fineware.
Type A CQT. Dacitic aggregate sand temper likely from Saipan, fineware.
Calcareous (>90%) hybrid temper sand. Lithic. May not have quartz.
BP9 has a full slide scan available (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.
Wholly non-calcareous, poorly sorted andesitic sand temper made up dominantly of vitric, microlitic and some felsitic volcanic lithic fragments, feldspar is plagioclase. Coarseware. Clinopyroxene and orthopyroxene.
Type B VST. Terrigenous andesitic (non-quartzose) volcanic sand temper. Clinopyroxene dominant, but minor orthopyroxene.
Wholly non-calcareous, poorly sorted andesitic sand temper made up dominantly of vitric volcanic lithic fragments, feldspar is plagioclase. Coarseware.
TYPE C MVQT. Quartz-rich dacitic sand temper of Saipan origin intermingled with more abundant calcareous sand. Coarseware.
TYPE C MVQT. Mixed quartzose (dacitic)-calcareous hybrid temper sand. Thin red ware.
Quartz-rich dacitic volcanic sand temper.
Glass-rich dacitic volcanic sand temper.
Andesitic temper sand in which quartz is absent or rare, but plagioclase is abundant and both pyroxenes are present.
46-29-205 has a full slide scan available (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.
Quartz-poor (andesitic) volcanic sands in sherds with red pastes. Clinopyroxene dominant, but minor orthopyroxene.
Quartz-poor (andesitic) volcanic sands in sherds with red pastes.
Quartzose (dacitic) volcanic sands in sherds with black pastes.
Quartz-free aggregate volcanic sand temper in which microlitic volcanic rock fragments of intermediate character are dominant.
Poorly sorted dacitic volcanic sand temper of simple mineralogy and probable fluvial origin, composed dominantly of volcanic glass rock fragments.
Moderately sorted and mineralogically complex andesitic volcanic sand temper of fine to coarse size and probable fluvial origin.
Volcanic sand tempers of andesitic character. Latte sherd. Clinopyroxene dominant, but minor orthopyroxene.
Deeply weathered. Volcanic sand temper.
Deeply weathered; Volcanic sand temper. Pre-latte sherd.
Calcareous sands. Pre-latte sherd.
Marianas Plainware. Volcanic sand temper. Clinopyroxene dominant, but minor orthopyroxene.
Poorly sorted, subangular to subrounded, andesitic volcanic sand temper rich in glassy volcanic rock fragments of tan to brown hues in thin section.
Quartzose glass-rich volcanic sand temper.
Poorly sorted, subangular to subrounded, andesitic volcanic sand temper rich in glassy volcanic rock fragments of tan to brown hues in thin section. Clinopyroxene dominant, but minor orthopyroxene.
Hybrid calcareous-quartz beach sand temper.
Quartz-calcite temper.
Quartz-calcite temper, dacitic and reef deitrius source. Pre latte red-ware lime-filled. Manually added.
Quartz-rich temper sands composed of the same grain types observed in quartz-rich soils and derivative sands of north-central Saipan. Pre-Latte sherd.
Quartzose volcanic temper sand rich in grains of volcanic glass. Sabanan Fiang benchland east of the island crest in north-central Saipan. Latte sherd. Dacitic.
98-9 has a full slide scan available (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.
Quartzose volcanic temper sand rich in grains of volcanic glass. Sabanan Fiang benchland east of the island crest in north-central Saipan. Latte sherd. Dacitic.
Quartz-poor volcanic sand temper of feldspathic composition and andesitic character. Latte. Clinopyroxene and orthopyroxene.
Andesitic volcanic sand temper. Clinopyroxene dominant, but minor orthopyroxene.
Pre-Latte sherd. Quartz-rich quartzose sand temper.
Hybrid quartz grains and calcareous detritus.
Hybrid quartz grains and calcareous detritus.
Hybrid temper sand (85-90% of total grain population is calcareous reef detritus). Pre-latte.
Hybrid with much leeching of calcareous grains, so numbers may be unrepresentative.
Temper with reddish surfaces but uniformly dark and hackly interiors, contains quartz-rich temper sand admixed with calcareous grains.
Glass- rich dacitic volcanic sand, type B. Marianas trailed sherd.
Glass-rich volcanic sand , Type C, tan to brown vesicular glass. Marianas cordmarked sherd. Clinopyroxene and orthopyroxene.
Glass-rich volcanic sand , Type C, Marianas incised sherd. Clinopyroxene dominant, and orthopyroxene.
Feldspathic andesitic volcanic sand. Marianas decordated sherd. Clinopyroxene dominant, but minor orthopyroxene.
Feldspathic andesitic volcanic sand. Marianas plainware sherd. Clinopyroxene dominant, but minor orthopyroxene.
Hybrid sand temper containing unstrained quartz as the most abundant terrigenous grain. Pre-latte.