Marble Bar Meteorite Impact Spherule Bed [61 gm ~ 3.47 Ga]
Brand : Jensan Scientifics LLC
- SKU:
- JPT-77238
- Condition:
- New
- Availability:
- Usually ships in 24 hours.
- Weight:
- 1.00 LBS
- Minimum Purchase:
- 1 unit
- Maximum Purchase:
- 1 unit
- Shipping:
- Calculated at Checkout
Marble Bar: Explore Earth’s Meteorite Impact History
This rare geological specimen is a remnant of the late heavy bombardment (LHB), a period marked by intense meteorite and asteroid impacts. Uncover the secrets of the Archean era with this Marble Bar impact spherule ejecta from the Pilbara Craton, Western Australia.
Key Features
- Silicified Impact Spherules
- Contains Fe-rich rims primarily composed of secondary siderite, with high nickel (Ni) abundances and Ni/Cr ratios.
- Represents hypervelocity impacts that shaped the Pilbara Craton, evidenced by spherule beds with microtektites, microkrystite spherules, iridium anomalies, and nickel-rich minerals.
- Associated with unconformities, banded iron formations, major faulting, erosion, and depositional features.
Specifications
- Size: 59mm L x 58mm W x 9mm D
- Weight: 61.2 grams
- Age: ~3.47 billion years (Duffer Formation, Marble Bar Chert Member)
Contents
- Impact spherules intermixed with chert fragments and iron-rich spherules with secondary siderite.
- High nickel abundance in spherule rims.
- Matrix primarily composed of arenite with spherule lenses within bedded chert.
- Evidence of fragmentation and tsunami action, with iridium levels at two ppb.
Included with Purchase
- Tag and tag stand
- Information about the specimen
- Certificate of Authenticity
Note: Plexiglass bases and photo cube are not included.
Makes a Terrific Addition to Impact Collections!
This Marble Bar impact spherule ejecta is a fascinating addition to any geological collection, offering a tangible connection to our planet’s distant cosmic past.