<p data-end="161" data-start="70"><strong data-end="83" data-start="70">Key Point</strong><br data-end="86" data-start="83" />
lorem ipsom new post</p>

<hr data-end="166" data-start="163" />
<h4 data-end="207" data-start="168">1. What Kind of Rocks Are These?</h4>

<ul data-end="369" data-start="208">
	<li data-end="249" data-start="208">
	<p data-end="249" data-start="210">They are <strong data-end="28" data-start="9">volcanic basalt</strong>, created when magma solidified beneath the Earth&rsquo;s surface.</p>
	</li>
	<li data-end="291" data-start="250">
	<p data-end="291" data-start="252">These rocks give us important clues about Earth&rsquo;s early crust, ancient oceans, and the possible origins of life.</p>
	</li>
	<li data-end="369" data-start="292">
	<p data-end="369" data-start="294">Scientists used two different <strong data-end="52" data-start="30">radioactive dating</strong> methods (samarium&ndash;neodymium decay) to confirm their age, making these the <strong data-end="166" data-start="127">oldest known intact rock formations</strong></p>
	</li>
</ul>

<hr data-end="374" data-start="371" />
<h4 data-end="404" data-start="376">2. Rocks vs. Minerals</h4>

<ul data-end="524" data-start="405">
	<li data-end="446" data-start="405">
	<p data-end="446" data-start="407">While the famous zircon crystals from Australia are older (~4.4 billion years), they are <strong data-end="110" data-start="89">mineral fragments</strong>, not full rock formations.</p>
	</li>
	<li data-end="524" data-start="447">
	<p data-end="524" data-start="449">The Quebec rocks, in contrast, are <strong data-end="60" data-start="35">whole rock structures</strong>, which makes them more valuable for understanding early Earth.</p>
	</li>
</ul>

<hr data-end="529" data-start="526" />
<h4 data-end="580" data-start="531">3. What Do They Tell Us About Early Earth?</h4>

<ul data-end="662" data-start="581">
	<li data-end="662" data-start="581">
	<p data-end="662" data-start="583">The Hadean eon was once thought to be a <strong data-end="65" data-start="40">chaotic, molten world</strong>. But these rocks suggest it may have had a <strong data-end="161" data-start="109">cooling crust, shallow oceans, and an atmosphere</strong>, all of which might have helped life begin.&nbsp;</p>
	</li>
</ul>

<hr data-end="667" data-start="664" />
<h3 data-end="689" data-start="669">Why It Matters</h3>

<ul data-end="910" data-start="690">
	<li data-end="775" data-start="690">
	<p data-end="775" data-start="692">These rocks are a <strong data-end="741" data-start="710">snapshot of Earth&rsquo;s infancy</strong>, right after the planet formed.</p>
	</li>
	<li data-end="910" data-start="776">
	<p data-end="910" data-start="778">Understanding their age and composition helps scientists reconstruct the early environment and learn how life might have originated.</p>
	</li>
</ul>

<hr data-end="915" data-start="912" />
<p data-end="1062" data-start="917">Let me know if you&rsquo;d like to focus on a specific part&mdash;like dating techniques, what early Earth looked like, or the importance for life&rsquo;s origins!</p>


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